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ベーシックシステムキャリア(ルーフレールタイプ)。コストパフォーマンスの高いベーシックモデルです。

Description。The Cmod， or Carrier Module， family of products is designed to offer quick， simple， and flexible integration of an FPGA into circuit design， prototyping， and learning/hobby projects.The Digilent Cmod S7 is a small， 48-pin DIP form factor board， populated with 36 pins， built around a Xilinx Spartan-7 FPGA that brings FPGA power and prototyping to a solderless breadboard.The board includes a Quad-SPI flash for programming， as well as a USB-JTAG programming circuit and USB-UART bridge. The Cmod S7 also features a clock source， Pmod port， and onboard I/O with LEDs and pushbuttons. There are 32 FPGA I/O signals， 2 FPGA analog input signals， an external power input rail， and ground that are routed to 100-mil-spaced through-hole pins， making the Cmod S7 compatible with solderless breadboards. This form factor makes the Cmod S7 a great option for flexible and affordable prototyping， or learning FPGA and digital logic circuits. At just .7 by 3.05， it can also be loaded in a standard socket and used in embedded systems.The Spartan-7 FPGA on the Cmod S7 fits performance into a small form-factor packaging. With the MicroBlaze Soft Processor Core from Xilinx， you can create embedded applications with a variety of peripherals， memory， and interfaces.If your design requires transceiver lines or more FPGA resources， we recommend the higher-performance Cmod A7， featuring an Artix-7 FPGA.Guides and demos are available to help users get started quickly with the Cmod S7. These can be found through the Support Materials tab.。Features。Xilinx Spartan-7 FPGA(XC7S25-1CSGA225C)。〇3，650 slices containing four 6-input LUTs and 8 flip-flops。〇1，620 Kbits of fast block RAM。〇Three clock management tile， each with a phase-locked loop and mixed-mode clock manager。〇80 DSP slices。〇Internal clock speeds exceeding 450 MHz。〇On-chip analog-to-digital converter(XADC)。〇Programmable over JTAG and Quad-SPI Flash。Memory。〇4 MBQuad-SPI Flash。Power。〇Powered from USB or 5V external supply connected to DIP pin 24(micro USB cable NOT included)。USB。〇USB-JTAG programming circuitry。〇USB-UART bridge。Push-buttons and LEDs。〇2 Buttons。〇4 LEDs。〇1 RGB LED。Expansion Connectors。〇1 Pmod connector。8 total FPGA I/O。〇48-pin DIP form-factor headers。36 populated pins。■32 total FPGA I/O。■2 Single-ended 0-3.3V analog inputs to XADC。Product Compliance：。〇HTC：8473301180。〇ECCN：EAR99。What's Included。Cmod S7 Module。Custom Digilent cardboard box with protective foam

Wago Fieldbus ConnectorThe Wago Fieldbus connector is an innovation that links a PROFIBUS device to a PROFIBUS line。It has a Stecker 9-Pin D-sub male connector。BUS connectors: Rewireable bus interface connectors are suitable for Bitbus， CAN-Bus， Interbus-S (Fieldbus)， and Profibus systems。Compact and high quality， the 9-pole sub-D housings are available in bus node or bus termination versions and are colour-coded for easy identification。Service nodes are also available for CAN-Bus and Profibus systems， allowing online programming and repair。Each interface comes with detailed assembly instructions and mounting accessories。Available in versions with horizontal or vertical cable outlets Fast and reliable connection via screw terminals on the PCB Bus terminations include SMT termination resistors Colour-coded bodies aid installation and repair Safe ESD protection thanks to fully insulated housings Supplied with reliable crimp strain reliefFeatures and BenefitsTwo horizontal cable entries: one input and one output Fast and maintenance‐free cage clamp connection can be held in the open position with the help of an actuation slide mechanism Externally operable switch to activate and/or deactivate the network terminating resistor Enables the quick， easy connection of incoming and outgoing bus lines Baud rate: 12Mbps Supply voltage: 4.75VDC to 5.25VDC Operating temperature ranges between 0℃ and 60℃CertificationsIP20 rated IEC 60068-2-6 cULus 508 approved TUV certified EN 60079-0 IEC 60079-0

Electrodynamic Exciter Drivers Visaton Exciters are designed to convert a flat panel into a loudspeaker instead of fitting a conventional loudspeaker Panels of many different materials and sizes can be used such as plywood， polystyrene ceiling tiles and plexiglass Exciters provide an invisible sound source which is also proof against external influences (water， dust， sharp objects) Sound quality can be very good and their non directional sound production means that positioning in a room is not so important as with conventional speakers Exciters are easy to install and do not require holes cutting to accommodate them Exciters are a new and innovative type of speaker They are electromagnetic devices which connect to an ordinary audio amplifier in the conventional way by means of loudspeaker cable Once fixed in place to the rear of a panel， the audio signal causes the exciter unit to vibrate which in turn makes the panel to which it is fixed vibrate and create sound The quality of the reproduced sound is very much dependent on the type of surface the exciter is attached to The sound will generally be better with larger panels which are light and rigid Measurements such as frequency response and sound pressure level will depend on the surface material Ideally the exciter should be fitted slightly off centre on the panel and should be firmly attached by means of gluing and/or screwing.

Description。The SparkFun Qwiic Shield for Arduino Nano provides you with a quick and easy way to enter into SparkFun's Qwiic ecosystem with your Arduino Nano board. The Qwiic shield connects the I2C bus(GND， 3.3V， SDA and SCL)on your Arduino Nano to

The Papilio DUO has an FPGA on the top and the same chip that is used in the Arduino Leonardo(ATmega32U4)on the bottom. It's like having an Arduino with a full circuit laboratory connected to it! For example、you can draw circuits to move pins、connec

対象メーカー：・BMC ・DIAMONDBACK ・FOCUS ・HAIBIKE ・HARO ・KHS ・KONA ・MERIDA ・MONGOOSE ・ROCKY MOUNTAIN ・SCHWINN ・STAIGER ・WINORA

SKF Spherical Roller Bearing， 140 mm ID， 250 mm OD - 22228 CC/C3W33 This spherical roller bearing from SKF is a self-adjusting unit that effectively accommodates shaft misalignment。It delivers even load distribution and has a very high load-carrying capacity for heavy-duty applications。Its innovative self-guiding rollers keep friction and heat at low levels， so your equipment can operate efficiently。This lack of friction also reduces wear on the bearing， ensuring a long lifespan。Thanks to its steel construction， its highly durable and resistant to corrosion， so its suitable for use in harsh environments。A bearing like this is used in applications with heavy radial and axial loads in either direction. Suitable to use with compact machinery as its simple to mount in tight spaces Substantial fatigue load limit of 86.5 kN Supplied as a non-separable bearing for simple and time-saving installation Reduced maintenance and service costs due to low consumption of lubrication Application Information Wind power generation Medical and pharmaceutical manufacturing Off-shore drilling Pump manufacturingSKF 球面ローラーベアリングには、2 列の対称ローラー、共通スフィンベアリング外輪軌道、ベアリング軸に対して傾斜する 2 つの内輪軌道があります。外輪軌道の球の中心点は、ベアリング軸にあります。内径 140 mm、外径 250 mm です。 Does this bearing need maintenance ベアリングはスチール製です 円筒穴タイプThe bearing is wear-resistant and wont need frequent maintenance or replacement。It has three lubrication holes on the outer ring for simple re-greasing when necessary.

SKF Taper Roller Bearing， 80 mm ID， 170 mm OD - C 2316 K/C3 If you need an efficient way to handle heavy radial loads， equip your industrial machinery with this CARB-series toroidal roller bearing from SKF。Its innovative design features long， slightly barrel-shaped symmetrical rollers and closely curved raceway profiles。This helps the bearing accommodate misalignment and axial displacement as well as radial loads， making it a good all-around solution。The design also keeps friction low， meaning the bearing is efficient and wont be damaged by overheating。Its distinctive roller profile prevents stress， so you can be confident of long service life. Parallel bore type supports axial loads Taper bearing type supports radial loads and thermal expansion Inside diameter of 80 mm， outside diameter of 170 mm Efficient and versatile race width of 58 mm Application Information Conveyors Hydraulic motors and pumps Wind turbinesSKF CARB トロイダルローラーベアリングは、1 列の長いややバレル形状の対称ローラーとトーラス形状の軌道プロファイルを備えています。これらは自由側のベアリングで、半径方向の荷重にのみ対応します。カーブベアリングは、多くの場合、自由側のベアリング配置で、自由側の球面ローラーベアリングを交換するために使用します。 How are CARB toroidal roller bearings different from conventional bearings ミスアライメントに対応します カーブベアリングは、球面ローラーベアリングや自動調心ボールベアリングのようなセルフアライメント式です。 軸方向の変位に対応します カーブベアリングは、円筒ローラーベアリングやニードルローラーベアリングのようなシャフトの熱膨張を補償します。 各種寸法シリーズ カーブベアリングには、対応する球面ローラーベアリング、セルフアライメント式ボールベアリング、円筒ローラーベアリング、ニードルローラーベアリングと同じ境界寸法を使用できます。 長寿命 特殊なローラープロファイルにより、ローラー端部の応力ピークを防止します。 低摩擦 セルフガイドローラーにより、低レベルで摩擦や摩擦熱を維持 耐摩耗性の向上 すべての CARB ベアリングは、SKF Explorer ベアリングをアップグレードした製品です。 低ノイズSKFs toroidal roller bearings from the CARB series eliminate the need to compromise between a tight fit and axial freedom。This means its easier for you to eliminate creep and fretting corrosion， which are common causes of bearing failure.

コイル電圧 = 24V dc。接点構成 = SPST。取り付けタイプ = DINレール。ターミナルタイプ = ねじV dc。奥行き = 75.6mm。高さ = 87.9mm。長さ = 6.2mm。シリーズ = 38 Series。入力電流 = 10.5mA。動作時間 = 0.2ms。Finder Interface Relay ModuleThe Finder interface relay module is an innovative， ultra-compact electromechanical device equipped with a 24VDC coil and an SPNO contact configuration. This narrow design interface relay works as a coupling element used to send control signals to and from a PLC. The high number of approvals make it useful for many applications around the world. It offers a high-density solution for smaller electrical cabinets and other industrial applications thus optimising your panel installation. This electromechanical relay module has a small footprint that makes it ideal for applications where space-saving is essential.Features and BenefitsThe contact rated voltage is 24VDC and switching current of 6A The input and output circuits and the voltage supply are completely electrically isolated Instant ejection of relay by plastic retaining clip Integral coil indication and protection circuit Silent high speed switching Long electrical life Operating temperature ranges from -20℃ to 55℃ AgNi contact with optionally hard gold-plating available Screw type terminal connection DIN rail type mountingApplicationsPackaging machines Traffic light controls Vending machines Programmable controllers Control panels for electrical distribution Labelling machine Bottling plants Industrial process control Motor control applications Electrical isolation Signal matching between electronic controlsCertificationsIP20 rated CE certified CSA certified EAC certified cRUus certified

。SKF Taper Roller Bearing， 120 mm ID， 215 mm OD - C 3224 K SKFs CARBR toroidal roller bearing is an innovative choice。It combines design features from several conventional bearing types with a robust build quality to promote high performance， reliability and significantly longer service life。The bearing can handle misalignment and axial displacement without creating internal axial loads， and theres virtually no increase in friction。This removes the need to compromise between a firm fit and axial freedom， meaning tight fits can be used to eliminate creep (or slippage)， as well as wear and tear between surfaces. Parallel bore type Compact structure High precision Inside diameter of 120 mm Outside diameter of 215 mm Race width of 76 mm Application Information Fans and blowers Crushers and grinding mills Industrial transmissions Conveyors Hydraulic motors and pumps Wind turbinesSKF CARB トロイダルローラーベアリングは、1 列の長いややバレル形状の対称ローラーとトーラス形状の軌道プロファイルを備えています。これらは自由側のベアリングで、半径方向の荷重にのみ対応します。カーブベアリングは、多くの場合、自由側のベアリング配置で、自由側の球面ローラーベアリングを交換するために使用します。 What are the benefits of CARBR bearings ミスアライメントに対応します カーブベアリングは、球面ローラーベアリングや自動調心ボールベアリングのようなセルフアライメント式です。 軸方向の変位に対応します カーブベアリングは、円筒ローラーベアリングやニードルローラーベアリングのようなシャフトの熱膨張を補償します。 各種寸法シリーズ カーブベアリングには、対応する球面ローラーベアリング、セルフアライメント式ボールベアリング、円筒ローラーベアリング、ニードルローラーベアリングと同じ境界寸法を使用できます。 長寿命 特殊なローラープロファイルにより、ローラー端部の応力ピークを防止します。 低摩擦 セルフガイドローラーにより、低レベルで摩擦や摩擦熱を維持 耐摩耗性の向上 すべての CARB ベアリングは、SKF Explorer ベアリングをアップグレードした製品です。 低ノイズCARBR bearings use high-quality steel as well as an improved heat treatment process， meaning their reliability and service life are substantially higher。Noise and vibration levels， energy consumption and operating temperatures are also much lower。Reduced operating temperatures mean longer intervals between relubrications.

コイル電圧 = 24V ac/dc。接点構成 = SPDT。取り付けタイプ = DINレール。極数 = 1。ターミナルタイプ = ねじ。奥行き = 75.6mm。高さ = 87.9mm。長さ = 6.2mm。シリーズ = 38 Series。接点材質 = 銀合金。入力電流 = 12mA。寸法 = 6.2 x 75.6 x 87.9mm。Finder Interface Relay ModuleThe Finder interface relay module is an innovative， ultra-compact electromechanical device equipped with a 24AC/DC coil and an SPDT 1C/O contact configuration. This narrow design interface relay works as a coupling element used to send control signals to and from a PLC. The high number of approvals make it useful for many applications around the world. It offers a high-density solution for smaller electrical cabinets and other industrial applications thus optimising your panel installation. This electromechanical relay module has a small footprint that makes it ideal for applications where space-saving is essential.Features and BenefitsThe contact rated voltage is 250VAC and switching current of 6A The input and output circuits and the voltage supply are completely electrically isolated Instant ejection of relay by plastic retaining clip Integral coil indication and protection circuit Operating temperature ranges from -40℃ to 70℃ AgNi contact material Screw type terminal connection DIN rail type mountingApplicationsPackaging machines Traffic light controls Vending machines Programmable controllers Control panels for electrical distribution Labelling machine Bottling plants Industrial process control Motor control applications Electrical isolation Signal matching between electronic controlsCertificationsIP20 rated CE certified CSA certified EAC certified cRUus certified

コイル電圧 = 12V dc。接点構成 = SPDT。取り付けタイプ = DINレール。極数 = 1。ターミナルタイプ = ねじV ac。奥行き = 75.3mm。高さ = 78.6mm。長さ = 15.8mm。シリーズ = 48 Series。接点材質 = 銀合金。入力電流 = 41mA。基準適合 = CE、cULus、EAC、EN60715、PCT、RINA、SA、UL、VDE℃。Finder Interface Relay ModuleThe Finder interface relay module is an innovative， ultra-compact electromechanical device equipped with a 12VDC coil and an SPDT 1 C/O contact configuration. This narrow design interface relay works as a coupling element used to send control signals to and from a PLC. The high number of approvals make it useful for many applications around the world. It offers a high-density solution for smaller electrical cabinets and other industrial applications thus optimising your panel installation. This electromechanical relay module has a small footprint that makes it ideal for applications where space-saving is essential.Features and BenefitsThe contact rated voltage is 250VAC and switching current of 10A Instant ejection of relay using plastic retaining clip Supply status indication and EMC coil suppression module Silent high speed switching Long electrical life Operating temperature ranges from -40℃ to 70℃ AgNi contact Screw type terminal connection DIN rail type mountingApplicationsMedical and dentistry Shipyards Elevators and lifts Panels for electrical distribution Building automation Carousel warehouses Control panels Hoists and cranes Industrial process control Motor control applications Electrical isolation Signal matching between electronic controlsCertificationsIP20 rated UL approved CE certified ABS certified VDE certified NF certified CSA certified EAC certified cRUus certified

Espruino Pico is a tiny microcontroller board that runs JavaScript(it doesn't need to be plugged into a computer)、making it easier than ever to control electronics in the real world. You can program it with nothing but a serial terminal program、but there's also an IDE that runs in the Chrome Web browser. It's got a syntax highlighted editor as well as a graphical programming language.。Once you have uploaded code、you can inspect and change variables(including functions)while your program is running. If you make something with an Espruino Pico and need to change it a year later、your original code is still there waiting for you!。This is the pinned version of the board、which fits perfectly into breadboard. If you need without pre-soldered pins、please visit Espruino Pico(unpinned).。Features：33mm×15mm(1.3×0.6 inch)。22 GPIO pins：9 Analogs inputs、21 PWM、2 Serial、3 SPI、3 I2C。All GPIO is 5 volt tolerant(Arduino compatible)。2 rows of 9 0.1" pins、with a third 0.05" row of 8 pins on the end。On-board USB Type A connector。Two on-board LEDs and one button.。STM32F401CDU6 CPU - ARM Cortex M4、384kb flash、96kb RAM。On-board 3.3v 250mA voltage regulator、accepts voltages from 3.5v to 16v。Current draw in sleep：< 0.05mA - over 2.5 years on a 2500mAh battery。On-board FET can be used to drive high-current outputs。Part List：Espruino Pico(pinned)x 1

。SKF Spherical Roller Bearing， 120 mm ID， 215 OD - 23224 CC/C3W33 Use this SKF spherical roller bearing to support both radial and axial loads。It features a single outer raceway and two inner ring raceways inclined at an angle towards the bearings axis。This innovative design allows the product to support loads from both directions。The bearing has a deep groove， so it can handle high loads without generating excessive friction。The tapered cylindrical rollers， raceways and cage are all made from stainless steel， making this product strong and highly durable for reliable performance over a long lifespan. Twin tapered bore helps resist axial shock loads， misalignment and shaft deflection Spherical roller bearing type can support heavy radial loads Stainless-steel body material for corrosion resistance Race width of 76 mm for versatile application Application Information Renewable energy generation Mining and mineral processing Material handling Marine industry applicationsSKF 球面ローラーベアリングには、2 列の対称ローラー、共通スフィンベアリング外輪軌道、ベアリング軸に対して傾斜する 2 つの内輪軌道があります。外輪軌道の球の中心点は、ベアリング軸にあります。ずれやシャフトの偏向が発生しやすい用途で、非常に重いラジアル荷重とアキシャル荷重を処理することは、非常に困難な場合があります。SKF 球面ローラーベアリングが課題を解決します。高い負荷容量とずれに対応できる Ability で、メンテナンスコストを低減し、ベアリングのサービス寿命を延ばします。開放型と密閉型の両方の堅牢な球面ローラーベアリングを、幅広く提供しています。球面ころ軸受の用途例を以下に示します。 再生可能エネルギー、鉱業、鉱物加工、セメント、マテリアルハンドリング、紙パルプ、産業用トランスミッション、金属、及び海洋。 How accurately do I need to align the bearing ミスアライメントに対応します 高い積載荷重 長寿命 低摩擦 堅牢This bearing is designed to accommodate some initial misalignment and is capable of aligning itself over time。This will reduce both installation and overall maintenance time。What is the maximum speed this bearing can accommodate This bearing has a high limiting speed of 2800 revolutions per minute， so it will support equipment with very rapid rotation.

Espruino Pico is a tiny microcontroller board that runs JavaScript(it doesn't need to be plugged into a computer)、making it easier than ever to control electronics in the real world. You can program it with nothing but a serial terminal program、but there's also an IDE that runs in the Chrome Web browser. It's got a syntax highlighted editor as well as a graphical programming language.。Once you have uploaded code、you can inspect and change variables(including functions)while your program is running. If you make something with an Espruino Pico and need to change it a year later、your original code is still there waiting for you!。This is unpinned version、if you want pre-soldered pins、please visit Espruino Pico(pinned).。Features：33mm×15mm(1.3×0.6 inch)。22 GPIO pins：9 Analogs inputs、21 PWM、2 Serial、3 SPI、3 I2C。All GPIO is 5 volt tolerant(Arduino compatible)。2 rows of 9 0.1" pins、with a third 0.05" row of 8 pins on the end。On-board USB Type A connector。Two on-board LEDs and one button.。STM32F401CDU6 CPU - ARM Cortex M4、384kb flash、96kb RAM。On-board 3.3v 250mA voltage regulator、accepts voltages from 3.5v to 16v。Current draw in sleep：< 0.05mA - over 2.5 years on a 2500mAh battery。On-board FET can be used to drive high-current outputs。Part List：Espruino Pico(unpinned)x 1

3-way signal conditioner， with configurable input/output， for electrical isolation and conversion of Analogue signals in the mV and V range， unipolar as well as bipolar。Push-in connection technology， standard configuration。Voltage signal 3-way signa

Description。The SparkFun RTK Surveyor is an easy to use GNSS receiver for centimeter-level positioning. Perfect for surveying， this preprogrammed device can also be used for autonomous driving， navigation， asset tracking and any other application where there is a clear view of the sky. The RTK Surveyor can also be used as a base station. With the flick of a switch， two RTK Surveyors can be used to create an RTK system capable of 14mm horizontal positional accuracy. The built-in Bluetooth(R)connection via an ESP32 WROOM enables the user to use the RTK Surveyor with their choice of GIS application on a phone or tablet. The built in battery allows field use for up to four hours and is compatible with common USB battery banks.。This device can be used in four modes：GNSS Positioning(～30cm accuracy)。GNSS Positioning with RTK(1.4cm accuracy)。GNSS Base Station。GNSS Base Station NTRIP Server。In Position mode the device receives L1/L2 signals from a user-provided antenna and the high-grade GNSS receiver provides lat/long and altitude with accuracies around 300mm.。In Positioning with RTK mode the device receives L1/L2 signals from the antenna and correction data from a base station. The correction data can be obtained from a cellular link to online correction sources or over a radio link to a 2nd RTK Surveyor setup as a base station.。In Base Station mode the device is mounted to a temporary position(like a tripod)and begins transmitting correction data over a radio or internet connection. A base is often used in conjunction with a second unit set to 'Positioning with RTK' to obtain the 14mm relative accuracy.。In Base Station NTRIP Server mode the device is mounted to a semi or permanently fixed position(like a roof)and connects over WiFi to transmit the correction data to a NTRIP caster so that any rover can access the correction data over a cellular or internet connection. This type of base is a very easy way to setup a very precise absolute correction source.。Two cables are provided with the RTK Surveyor allowing a user to plug on our easy to use Serial Telemetry Radios or their own radio link. If a local correction source is within 10km， a user can also use their phone to provide correction data over the Bluetooth(R)link(no external radio needed!).。Note：The SparkFun RTK Surveyor is just the enclosed device and does NOT include an antenna， serial telemetry radio， or associated mounting pieces. These items will need to be purchased separately from the Hookup Accessories below.。Get Started With the SparkFun RTK Surveyor Guide。Features。GNSS Receiver：ZED-F9P。Concurrent reception of GPS， GLONASS， Galileo and BeiDou。Receives both L1C/A and L2C bands。Current：68mA - 130mA(varies with constellations and tracking state)。Time to First Fix：25s(cold)， 2s(hot)。Max Navigation Rate：PVT(basic location over UBX binary protocol)- 25Hz。RTK - 20Hz。Raw - 25Hz。Horizontal Position Accuracy：2.5m without RTK。0.010m with RTK。Max Altitude：50km(31 miles)。Max Velocity：500m/s(1118mph)。Bluetooth(R)Transceiver：ESP32 WROOM。Xtensa(R)dual-core 32-bit LX6 microprocessor。Up to 240MHz clock frequency。16MB of flash storage。520kB internal SRAM。Integrated 802.11 BGN WiFi transceiver。Integrated dual-mode Bluetooth(R)(classic and BLE)。Hardware accelerated encryption(AES， SHA2， ECC， RSA-4096)。2.5 μA deep sleep current。Overall Device。Internal Battery：LiPo 1000mAh with 500mA charging。Radio Port：3.3V TTL Serial(57600bps RTCM TX/RX)。Data Port：3.3V TTL Serial(115200bps NMEA)。Weight：132g(entire device including battery)。Dimensions：118mm×79mm×30mm(4.7in×3.1in×1.2in)。1x Qwiic Connector。1x microSD Socket for optional logging。Changes：This version(which replaces SPX-17369)uses a reinforced edge mount SMA connector for better resiliency when a fixed 'stub' antenna is used.

Description。The SparkFun RTK Express Plus is an easy to use GNSS receiver for centimeter-level positioning. Perfect for surveying， autonomous vehicles， logging， and all types of post processing， this preprogrammed device can also be used for autonomous driving， navigation， asset tracking and any other application where there is a clear view of the sky. The RTK Express Plus adds an internal IMU to combine real-time GNSS tracking with advanced sensor fusion. The result is accurate positioning even when GNSS is lost in tunnels， parking garages， etc. Out of the box an RTK Express Plus can be used with a correction source to create an RTK system capable of 14mm horizontal positional accuracy. The built-in Bluetooth(R)connection via an ESP32 WROOM enables the user to use the RTK Express Plus with their choice of GIS application on a phone or tablet. The built in battery allows for over five hours of field use and is compatible with common USB battery banks.。We took all the lessons from the RTK Surveyor and built the RTK Express Plus. The RTK Express Plus is built upon the ZED-F9R u-blox receiver which uses the same F9 engine as all our RTK products but couples it with a built-in IMU. The embedded display allows for immediate feedback of horizontal positional accuracy， satellites in view， logging status， sensor fusion status， battery level， Bluetooth(R)MAC， etc. The rocker switches found on the original have been replaced by keypad buttons. We increased the battery to 1300mAh for a longer run time. The internal switches have been replaced by a digital mux allowing for some really exciting applications including event triangulation. More ESD protection was added to protect the RF path， and we even threw in an accelerometer for digital leveling in the field. Please note u-blox's sensor fusion algorithms are designed specifically for vehicles and will not aid in the accuracy of normal surveying.。This device can be used in two modes：GNSS Positioning(～30cm accuracy)。GNSS Positioning with RTK(1.4cm accuracy)。In Position mode the device receives L1/L2 signals from a user-provided antenna and the high-grade GNSS receiver provides lat/long and altitude with accuracies around 300mm. If enabled in automotive applications， the internal IMU augments the position information when GNSS reception is degraded.。In Positioning with RTK mode the device receives L1/L2 signals from the antenna and correction data from a base station. The correction data can be obtained from a cellular link to online correction sources or over a radio link to a RTK Surveyor/Express setup as a base station. If enabled in automotive applications， the internal IMU augments the position information when GNSS reception is degraded.。Two cables are provided with the RTK Express Plus allowing a user to plug in our easy to use Serial Telemetry Radios or their own radio link. If a local correction source is within 10km， a user can also use their phone to provide correction data over the Bluetooth(R)link(no external radio needed!).。Note：The SparkFun RTK Express Plus is just the enclosed device and does NOT include an antenna， serial telemetry radio， or associated mounting pieces. These items will need to be purchased separately from the Hookup Accessories below.。Get Started With the SparkFun RTK Express Guide。Features。GNSS Receiver：ZED-F9R。Concurrent reception of GPS， GLONASS， Galileo and BeiDou。Receives both L1C/A and L2C bands。Built-in IMU(triple axis accel， triple axis gyro)。Current：68mA - 130mA(varies with constellations and tracking state)。Time to First Fix：25s(cold)， 2s(hot)。Max Navigation Rate：PVT(basic location over UBX binary protocol)- 25Hz。RTK - 20Hz。Raw - 25Hz。Horizontal Position Accuracy：2.5m without RTK。0.010m with RTK。Max Altitude：50km(31 miles)。Max Velocity：500m/s(1118mph)。Bluetooth(R)Transceiver：ESP32 WROOM。Xtensa(R)dual-core 32-bit LX6 microprocessor。Up to 240MHz clock frequency。16MB of flash storage。520kB internal SRAM。Integrated 802.11 BGN WiFi transceiver。Integrated dual-mode Bluetooth(R)(classic and BLE)。Hardware accelerated encryption(AES， SHA2， ECC， RSA-4096)。2.5 μA deep sleep current。Overall Device。Internal Battery：LiPo 1300mAh with 500mA charging。Radio Port：3.3V TTL Serial(57600bps RTCM TX/RX)。Data Port：3.3V TTL Serial(460800bps NMEA)。Embedded OLED Display for available satellites， data logging， and more.。Push button controls。Weight：162g(entire device including battery)。Dimensions：132mm×101mm×32mm(5.2in×3.9in×1.2in)。1x Qwiic Connector。1x microSD Socket for optional logging

Description。The SparkFun RTK Express is an easy to use GNSS receiver for centimeter-level positioning. Perfect for surveying， logging， and all types of post processing， this preprogrammed device can also be used for autonomous driving， navigation， asset tracking and any other application where there is a clear view of the sky. The RTK Express can also be used as a base station. With the press of a button， two RTK Expresses can be used to create an RTK system capable of 14mm horizontal positional accuracy. The built-in Bluetooth(R)connection via an ESP32 WROOM enables the user to use the RTK Express with their choice of GIS application on a phone or tablet. The built in battery allows for over five hours of field use and is compatible with common USB battery banks.。We took all the lessons from the RTK Surveyor and built the RTK Express. The RTK Express is built upon the same ZED-F9P u-blox receiver as the original RTK Surveyor so you can expect the same incredible performance and rich feature set. The embedded display allows for immediate feedback of horizontal positional accuracy， satellites in view， logging status， survey-in status， battery level， Bluetooth(R)MAC， etc. The rocker switches found on the original have been replaced by keypad buttons. We increased the battery to 1300mAh for a longer run time. The internal switches have been replaced by a digital Mux allowing for some really exciting applications including event triangulation. More ESD protection was added to protect the RF path， and we even threw in an accelerometer for digital leveling in the field.。This device can be used in four modes：GNSS Positioning(～30cm accuracy)。GNSS Positioning with RTK(1.4cm accuracy)。GNSS Base Station。GNSS Base Station NTRIP Server。In Position mode the device receives L1/L2 signals from a user-provided antenna and the high-grade GNSS receiver provides lat/long and altitude with accuracies around 300mm.。In Positioning with RTK mode the device receives L1/L2 signals from the antenna and correction data from a base station. The correction data can be obtained from a cellular link to online correction sources or over a radio link to a second RTK Surveyor/Express setup as a base station.。In Base Station mode the device is mounted to a temporary position(like a tripod)and begins transmitting correction data over a radio or Internet connection. A base is often used in conjunction with a second unit set to 'Positioning with RTK' to obtain the 14mm relative accuracy. The RTK Surveyor and RTK Express are interchangeable as a Base Station； an RTK Surveyor can be a base for an RTK Express and vice versa.。In Base Station NTRIP Server mode the device is mounted to a semi or permanently fixed position(like a roof)and connects over WiFi to transmit the correction data to a NTRIP caster so that any rover can access the correction data over a cellular or Internet connection. This type of base is a very easy way to set up a very precise absolute correction source.。Two cables are provided with the RTK Express allowing a user to plug in our easy to use Serial Telemetry Radios or their own radio link. If a local correction source is within 10km， a user can also use their phone to provide correction data over the Bluetooth(R)link(no external radio needed!).。Note：The SparkFun RTK Express is just the enclosed device and does NOT include an antenna， serial telemetry radio， or associated mounting pieces. These items will need to be purchased separately from the Hookup Accessories below.。Get Started With the SparkFun RTK Express Guide。Features。GNSS Receiver：ZED-F9P。Concurrent reception of GPS， GLONASS， Galileo and BeiDou。Receives both L1C/A and L2C bands。Current：68mA - 130mA(varies with constellations and tracking state)。Time to First Fix：25s(cold)， 2s(hot)。Max Navigation Rate：PVT(basic location over UBX binary protocol)- 25Hz。RTK - 20Hz。Raw - 25Hz。Horizontal Position Accuracy：2.5m without RTK。0.010m with RTK。Max Altitude：50km(31 miles)。Max Velocity：500m/s(1118mph)。Bluetooth(R)Transceiver：ESP32 WROOM。Xtensa(R)dual-core 32-bit LX6 microprocessor。Up to 240MHz clock frequency。4MB of flash storage。520kB internal SRAM。Integrated 802.11 BGN WiFi transceiver。Integrated dual-mode Bluetooth(R)(classic and BLE)。Hardware accelerated encryption(AES， SHA2， ECC， RSA-4096)。2.5 μA deep sleep current。Overall Device。Internal Battery：LiPo 1300mAh with 500mA charging。Radio Port：3.3V TTL Serial(57600bps RTCM TX/RX)。Data Port：3.3V TTL Serial(115200bps NMEA)。Embedded OLED Display for available satellites， data logging， and more.。Push button controls。Weight：162g(entire device including battery)。Dimensions：132mm×101mm×32mm(5.2in×3.9in×1.2in)。1x Qwiic Connector。Changes：This version(which replaces SPX-18019)uses a reinforced edge mount SMA connector for better resiliency when a fixed 'stub' antenna is used.

Description。The LilyMini ProtoSnap is a great way to get started learning about creating interactive e-textile circuits before you start sewing. Like other LilyPad ProtoSnap boards， the LilyMini ProtoSnap has all of its pieces wired together out of the box， enabling you to test the circuit's function before you sew. At the center of the board is a pre-programmed LilyMini microcontroller connected to a LilyPad Light Sensor， LilyPad Button and two pairs of LilyPad LEDs.。The LilyMini ProtoSnap ships with pre-loaded code that uses all the LilyPad pieces connected to it. This sample code has three modes， which can be selected by pressing the LilyPad Button on the bottom-left side of the ProtoSnap. The built-in RGB LED on the LilyMini will change color to indicate which mode has been selected：。White：。All LEDs on.。Magenta：。LEDs fade in and out in a breathing pattern. When the light sensor is covered， LEDs fade faster.。Cyan：。LEDs off. When the light sensor is covered， LEDs will twinkle.。The LilyMini board， at the center of the ProtoSnap， has a built-in battery holder for a CR2032 battery(included). On the opposite side of the LilyMini you will find the SAMD11 brain， which controls the ProtoSnap.。Note：。A portion of this sale is given back to Dr. Leah Buechley for continued development and education in e-textiles.。Note：。The LilyPad LilyMini ProtoSnap does NOT include sewing needles or conductive thread. These items will need to purchased separately.。Warning：You cannot reprogram this product and any attempt at programming is at your own risk!。Get Started with the LilyMini ProtoSnap Guide

TE Connectivity 2337019-1RF Interface=UMCC， RF Connector Style=Receptacle， Connector System=Cable-to-Board， Sealable=No， Connector & Contact Terminates To=Printed Circuit Board， Number of Positions=1， PCB Mount Orientation=Vertical， Number of Coaxial Contacts=1， Impedance=50 Ω， EMI & RFI Protection Type=Shielding， Cable Connector Orientation=Straight， Body Material=High Temperature Thermoplastic UL94-V0， RF Connector Center Contact Plating Material=Gold over Nickel， RF Connector Center Contact Material=Copper Alloy， Termination Method to Wire & Cable=Solder， Termination Method to Printed Circuit Board=Surface Mount， RF Connector Coupling Mechanism=Snap-Off，Snap-On， Connector Mounting Type=Board Mount， RF Contact Captivation Method=Solder， Housing Color=Black， Cable Type=Coax， Operating Temperature Range=-40 85℃，-40 85℃， Operating Frequency=0 6 GHz， Packaging Method=Box

TheSiemensSIRIUS3TH4seriesisacontactorrelayforswitchingthecontrolsignalsinthecontrolcircuit。Ithasoperatingvoltageof220VAC。Thecontactorrelayshavestandard-compliantterminaldesignationsandareliableconnectiontechnology。Thetypeofelectricalconnectionforauxiliaryandcontrolcurrentcircuitisthroughscrewterminal。Duetomultiplicationofoutputs，simultaneousswitchingofupto10auxiliarycircuitsispossible。ThecontactsaredesignedwithpositivelydrivenoperationforsafetyapplicationsaswellasSUVAversions。Thedevicesareclimate-resistantandhaveahighcontactreliability。Itisapprovedforworldwideusee.g。IECandUL/CSA.ProtectionclassIPisIP20Ambientoperatingtemperatureis-25to+55℃

The Siemens SIRIUS 3TH4 series is a contactor relay for switching the control signals in the control circuit。It has operating voltage of 110 V AC。The contactor relays have standard-compliant terminal designations and a reliable connection technology。The type of electrical connection for auxiliary and control current circuit

The Siemens SIRIUS 3RH2 series is a contactor relay used for switching the control signals in the control circuit。The operating voltage is 24 V DC。The design of the surge suppressor is integrated with varistor。It has a size S00。The type of electrical connection for auxiliary contact is through spring terminal。The contactor relays have standard-compliant terminal designations and a reliable and time-saving connection technology。Due to the multiplication of outputs， simultaneous switching of several auxiliary circuits is possible and all contacts are available with positively driven operation for safety applications。The contactor relays are climate-resistant and have high contact reliability。It is approved for worldwide use e.g。IEC and UL/CSA.Operating frequency is 50 to 60 Hz Protection class IP is IP20

Description。The LilyPad E-Sewing ProtoSnap Kit is a great way to incorporate buttons and switches into an e-textile project without any programming required. Like other LilyPad ProtoSnap series boards， the individual pieces of the included E-Sewing ProtoSnap are pre-wired --- allowing you to try out the function of the circuit before sewing. We have also included a CR2032 battery， needle set， conductive thread bobbin and a swatch of white felt. With all of these parts combined and the featured guide(found in the Documents tab)， you will be able to plan and create fantastic projects straight out of the box!。The E-Sewing ProtoSnap includes three white LilyPad LEDs：two connected to a LilyPad Slide Switch and one connected to a LilyPad Button Board. A LilyPad Coin Cell Battery Holder with the included CR2032 coin cell battery provides all the power you need for the circuit. All you need to do is design how you want your project to be laid out， and then snap everything apart!。Note：A portion of this sale is given back to Dr. Leah Buechley for continued development and education in e-textiles.。Note：Due to the requirements of shipping the battery in this kit， orders may take longer to process and therefore do not qualify for same-day shipping. Additionally， these batteries cannot be shipped via Ground or Economy methods to Alaska or Hawaii. Sorry for any inconvenience this may cause.。Get Started with the LilyPad E-Sewing ProtoSnap Guide

The Audio Hacker shield for Arduino allows you to perform realtime digital signal processing. Record audio samples into memory and play them back. Mix samples、manipulate audio、build audio effects、or synthesize entirely new sounds. All with Arduino programming!。High quality 12-bit ADC and 12-bit DAC. Realtime ADC sampling and output to DAC at 44.1 kHz.。256K SRAM for recording/playback of audio samples. No SD card is needed! High-speed SRAM allows fast access to audio data for realtime processing and mixing.。Record about 9 seconds of high quality audio at 22 kHz with 12-bit resolution to SRAM. Much longer samples can be recorded at lower frequency and/or resolution. See memory capacity below.。TS922IN op-amp provides high current output and up to 100X gain preamp for weak inputs.。Two onboard buttons for input、bypass switch、volume knob.。Connection for 3V battery backup to retain samples in memory.。Compatible with Arduino Uno、Duemilanove、Mega、and Leonardo. Uses digital pins 5-13.。Easy to assemble kit! Available assembled in limited quantities.。Features：Audio input and output 3.5mm stereo jacks and solder pads. The stereo input is converted to mono、and the output is always mono. Solder pads are provided for input and output in case you want to use different types of connectors。The bypass switch allows you to hear the input signal(after it has been converted to mono)on the output. This switch allows you to compare the original signal with the processed output of the Audio Hacker.。Small volume knob for the output level of the processed signal。Two buttons provided for user input. These are connected to digital pins 5 and 6.。Preamp gain allows you to amplify weak input signals. For inputs from an MP3 music player(e.g. iPod)or computer、this potentiometer should be set to its lowest level(no gain).。Battery connection allows you to keep your audio samples in non-volatile memory when power is disconnected. A simple 3V coin cell battery(e.g. CR2032)is sufficient to retain the memory contents. See this project for more details.

The Siemens SIRIUS 3RH2 series is a coupling contactor relay used in railway for switching the control signals in the control circuit。The operating voltage is from 72 to 125 V DC。The design of surge suppressor is integrated with varistor。It has a size S00。The type of electrical connection for auxiliary contact is through spring-type terminal。The contactor relays have standard-compliant terminal designations and a reliable and time-saving connection technology。Due to the multiplication of outputs， simultaneous switching of several auxiliary circuits is possible and all contacts are available with positively driven operation for safety applications。The contactor relays are climate-resistant and have high contact reliability。It is approved for worldwide use e.g。IEC and UL/CSA.Operating frequency is 50 to 60 Hz Protection class IP is IP20

Description。Qwiic Boost increases the Qwiic bus from 3.3V to 5V while still providing the target device with 3.3V I2C signals. This is a handy board for connecting technologies that still require 5V for running higher voltage mechanisms(like a DC fan)but have an internal processor running at 3.3V. We've seen this a lot with air quality sensors that use a fan to push air into a test chamber.。The 5V boost circuit is rated up to 100mA with 90% efficiency. For applications where the 5V device needs 5V I2C signals， a conversion circuit is provided with the board. A jumper is available to select between 3.3V(default)and 5V I2C signals.。The SparkFun Qwiic Connect System is an ecosystem of I2C sensors， actuators， shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch， 4-pin JST connector. This reduces the amount of required PCB space， and polarized connections mean you can't hook it up wrong.。Experimental Product：SparkX products are rapidly produced to bring you the most cutting edge technology as it becomes available. These products are tested but come with no guarantees. Live technical support is not available for SparkX products. Head on over to our forum for support or to ask a question.

IEC Appliance Inlet C14 with Filter， Fuseholder 1- or 2-pole， Line Switch 2-pole.Panel mount: Screw-on from front side 4 Functions: Appliance Inlet Protection， Line Switch 2-pole， Fuseholder for fuse-links 5 x 20 mm 1 or 2 pole， Line filter in standard and medical version V-Lock notch standard Quick connect terminals 6.3 x 0.8 mm Unique Selling Proposition Various mounting options Attractive flat design Switch for highest inrush current V-Lock cord retaining Characteristics Ultra-compact design。Ideal for low profile designs Aluminium case provides good shielding All single elements are already wired Ideal for application with high transient loads Suitable for use in equipment Suitable for use in medical equipment

IEC Appliance Inlet C14 with Filter， Fuseholder 1- or 2-pole， Line Switch 2-pole.Panel mount: Screw-on from front side 4 Functions: Appliance Inlet Protection， Line Switch 2-pole， Fuseholder for fuse-links 5 x 20 mm 1 or 2 pole， Line filter in standard and medical version V-Lock notch standard Quick connect terminals 6.3 x 0.8 mm Unique Selling Proposition Various mounting options Attractive flat design Switch for highest inrush current V-Lock cord retaining Characteristics Ultra-compact design。Ideal for low profile designs Aluminium case provides good shielding All single elements are already wired Ideal for application with high transient loads Suitable for use in equipment Suitable for use in medical equipment

Description。The SparkFun I2S Audio Breakout board uses the MAX98357A digital to analog converter(DAC)， which converts I2S(not be confused with I2C)audio to an analog signal to drive speakers. The I2S Audio Breakout converts the digital audio signals using the I2S standard to an analog signal and amplifies the signal using a class D amplifier which can deliver up to 3.2W of power into a 4Ω load. The board can be configured to output only the left channel audio， right channel， or both.。The SparkFun I2S Audio Breakout board is fairly simple， requiring only a few pin connections to get it up and working. By default the board is configured in "mono" operation， meaning the left and right signals are combined together to drive a single speaker. If you want a separate speaker for the left and right audio channels you'll need to cut the mono jumper. In addition to being able to select the audio channel output， the gain can also be configured in a few ways. The gain of the amplifier can be configured from as low as +3dB to as high as +15dB. While the channel selection can be configured on board， the gain however is controlled externally using the gain pin. By default， the board is configured for +9dB， but can be easily changed!。Get Started with the SparkFun I2S Audio Breakout Guide。Features。Supply Voltage Range：2.5V - 5.5V.。Output Power：3.2W into 4Ω at 5V.。Output Channel Selection：Left， Right， or Left/2 + Right/2(Default).。Sample Rate：8kHz - 96kHz.。Sample Resolution：16/32 bit.。Quiescent Current：2.4mA.。Filterless Class D Outputs。No MCLK Required。Click and Pop Reduction。Short-Circuit and Thermal Protection.

IEC Appliance Inlet C14 with Filter， Fuseholder 1- or 2-pole， Line Switch 2-pole.Panel mount: Screw-on from front side 4 Functions: Appliance Inlet Protection， Line Switch 2-pole， Fuseholder for fuse-links 5 x 20 mm 1 or 2 pole， Line filter in standard and medical version V-Lock notch standard Quick connect terminals 6.3 x 0.8 mm Unique Selling Proposition Various mounting options Attractive flat design Switch for highest inrush current V-Lock cord retaining Characteristics Ultra-compact design。Ideal for low profile designs Aluminium case provides good shielding All single elements are already wired Ideal for application with high transient loads Suitable for use in equipment Suitable for use in medical equipment

IEC Appliance Inlet C14 with Filter， Fuseholder 1- or 2-pole， Line Switch 2-pole.Panel mount: Screw-on from front side 4 Functions: Appliance Inlet Protection class I， Line Switch 2-pole， Fuseholder for fuse-links 5 x 20 mm 1 or 2 pole， Line filter in standard and medical version V-Lock notch standard Quick connect terminals 6.3 x 0.8 mm Unique Selling Proposition Various mounting options Attractive flat design Switch for highest inrush current V-Lock cord retaining Characteristics Ultra-compact design。Ideal for low profile designs Aluminium case provides good shielding All single elements are already wired Ideal for application with high transient loads Suitable for use in equipment Suitable for use in medical equipment

IEC Appliance Inlet C14 with Filter， Fuseholder 1- or 2-pole， Line Switch 2-pole.Panel mount: Screw-on from front side 4 Functions: Appliance Inlet Protection class I， Line Switch 2-pole， Fuseholder for fuse-links 5 x 20 mm 1 or 2 pole， Line filter in standard and medical version V-Lock notch standard Quick connect terminals 6.3 x 0.8 mm Unique Selling Proposition Various mounting options Attractive flat design Switch for highest inrush current V-Lock cord retaining Characteristics Ultra-compact design。Ideal for low profile designs Aluminium case provides good shielding All single elements are already wired Ideal for application with high transient loads Suitable for use in equipment Suitable for use in medical equipment

。IEC Appliance Inlet C14 with Filter， Fuseholder 1- or 2-pole， Line Switch 2-pole.Panel mount: Screw-on from front side 4 Functions: Appliance Inlet Protection， Line Switch 2-pole， Fuseholder for fuse-links 5 x 20 mm 1 or 2 pole， Line filter in standard and medical version V-Lock notch standard Quick connect terminals 6.3 x 0.8 mm Unique Selling Proposition Various mounting options Attractive flat design Switch for highest inrush current V-Lock cord retaining Characteristics Ultra-compact design。Ideal for low profile designs Aluminium case provides good shielding All single elements are already wired Ideal for application with high transient loads Suitable for use in equipment Suitable for use in medical equipment

IEC Appliance Inlet C14 with Filter， Fuseholder 1- or 2-pole， Line Switch 2-pole.Panel mount: Screw-on from front side 4 Functions: Appliance Inlet Protection class I， Line Switch 2-pole， Fuseholder for fuse-links 5 x 20 mm 1 or 2 pole， Line filter in standard and medical version V-Lock notch standard Quick connect terminals 6.3 x 0.8 mm Unique Selling Proposition Various mounting options Attractive flat design Switch for highest inrush current V-Lock cord retaining Characteristics Ultra-compact design。Ideal for low profile designs Aluminium case provides good shielding All single elements are already wired Ideal for application with high transient loads Suitable for use in equipment Suitable for use in medical equipment

RS PRO Circular Connector Dust CapsIntroducing a sealing dust cap compatible with RS PRO ST1210 cable mount connectors. This cap is the ideal solution when it comes to protecting cable mount connectors against live circuits when they are not in use but also shields from dust and dirt.Why would you need this protective cap.Circular connectors have exposed terminals so protection from moisture and other possible contaminants is strongly advised. Dust caps are the perfect accessory to protect the socket & plug connectors from damage and offer a tight seal to repel dust and particles.Features and Benefits. Protective cover . Gender: Male . Material: Zinc Alloy . Finish: Nickel plating . Protection against live circuits . Shields from dirt and dust . Link chain . Internal threads and are used with ST1210 series circular connectors . IP67Compatible with ST1210 series cable mount connectors Male Plug: RS stock no: (206-5259) 206-5259， (206-5260) 206-5260， (206-5261) 206-5261， (206-5262) 206-5262， (206-5263) 206-5263， (206-5264) 206-5264 & (206-5265) 206-5265 Female Socket: RS stock no: (206-5266) 206-5266， (206-5268) 206-5268， (206-5269) 206-5269， (206-5270) 206-5270，( 206-5271) 206-5271， (206-5272) 206-5272 & (206-5274) 206-5274ApplicationsRS PRO circular connector dust caps are used in conjunction with cable mount connectors in applications such as；. Factory and Industrial Automation . Manufacturing . Process Control . Industrial networking . Measurement and instrumentationWhy would you choose RS PRO.RS PRO， the own brand of RS Components， offers an unbeatable range of products across all industries with quality you can trust. Our products are audited against demanding international standards， inspected for durability and consistency， and tested by leading engineers. Only when products have been through this process are they backed by our seal of approval. By providing quality that can be trusted on a choice of over 65，000 products across all technologies we make RS PRO your smart choice.