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標準変色表が容器表面にあるため、試験紙の変色をすぐ比べることができます。外部の影響を受けにくいよう、密閉性の高い容器に収納し、変質を防いでいます。pH試験紙ロールタイプは、テープ状の巻取り式です。外部の影響を受けにくいよう、密閉性の高い容器に収納し、変質を防いでいます。試験紙を使う長さだけ適宜に切り、使用できますので、無駄がありません。

標準変色表が容器表面にあるため、試験紙の変色をすぐに比べることができます。外部の影響を受けにくいよう、密閉性の高い容器に収納し、変質を防いでいます。

必要な長さにカットして使えるロールタイプのpH試験紙です。 試験紙を試験液に漬けると、試験紙の色が変わります。変わった色をケースの標準色と比較することで、試験液のpH値がわかります。 カッティングエッジ付き。

次亜塩素酸ナトリウムが水溶液中で加水分解を受け、アルカリ性を示すことから、水溶液中のpHを測定することにより、次亜塩素酸ナトリウム(NaClO)の残留塩素濃度を求めます。 標準変色表と試験紙を比べることにより、次亜塩素酸ナトリウムの残留塩素濃度を25、50、100、200 mg/L(ppm) の間隔で求めます。

ケースにカラースケールが付いています。

洗浄済みの溶剤廃棄時のPhチェックに。(廃液は中性にして排水する必要があります。)。洗浄後の空調機部品のPhチェックに。(アルミ部品等がアルカリ性のままで放置すると腐食の原因となります。)

水溶液中の次亜塩素酸(HCIO)および次亜塩素酸イオン(CIO^-)量を、酸化還元反応により、測定する試験紙です。標準変色表と試験紙を比べることにより、次亜塩素酸および次亜塩素酸イオン量を10、20、30、40、50 mg/L(ppm) の間隔で求めます。

標準変色表が容器表面にあるため、試験紙の変色をすぐに比べることができます。外部の影響を受けにくいよう、密閉性の高い容器に収納し、変質を防いでいます。試験紙をプラスチック製瓶に入れた取り扱いやすいタイプです。

専用ケースに入ったスティックタイプのpH試験紙です。 ケースにはカラースケールが付いており、簡単かつ迅速に測定が出来ます。 0．5秒試験液に試験紙を漬けて、カラースケールと比較することで、試験液のpH値がわかります。

ケースにカラースケールが付いています。カッティングエッジ付き。

サンプル溶液中のフッ化物やフッ化物イオン(F-)の有無を検出し、定量半定量測定はできません。 桃色試験紙は溶液滴下箇所に黄白色のスポットが現れます。

変色が長く保持されます。

塩素、臭素、オゾン、硫酸酸性中の亜硝酸などの酸化剤の検出に用います。酸化剤が存在すると白色から青色に変化します。 次亜塩素酸塩〔ClO-2mg/L(ppm)以上〕、亜硝酸塩〔NO2-3mg/L(ppm)以上〕で呈色します。 ヨウ化カリウムが酸化剤により酸化され、ヨウ素となり、ヨウ素がデンプンと反応し、青色となります。非常に鋭敏な反応です。

変色が完了するまで液に浸しておけるので、弱緩衝液の測定も可能です。 スティックはプラスチックのため、毛細管現象がなく、有害サンプルで指を濡らすことはありません。 異なった色素を含浸させたセルロース切片(1～4個)をプラスチックスティックに個々に圧着しています。

保管に便利なマグネット付き。センサーキャップ(ストラップ付)付き。バックライト付き。

アルカリの検出に使用し、アルカリに触れると青く変色します。感度：試験紙にpH8.0の緩衝液1滴を滴下すると、すぐ青く変わります。高純度のリトマス試薬を、高純度(α-セルロース99%以上)の紙に含浸させた感度、変色に優れた製品です。

1枚ずつ切り離して使用するブック式です。

残留塩素濃度を測定する試験紙です。 ●SPT-50は3項目の測定が可能で、プールの水質チェックに適しています。

7mm幅×5m巻で、任意の長さで使用できます。 使いやすい特殊構造のプラスチックディスペンサー入りです。

遊離塩素・臭素・オゾンなどの酸化剤により、ヨウ化カリウムが酸化され生じたヨウ素と反応することで青色を呈します。

Everything to build your sculpture and customize it：high-quality die-cut paper templates、a set of accessories and glue dots

酸の検出に使用し、酸に触れると赤く変色します。 感度：試験紙にpH5.0の緩衝液1滴を滴下すると、すぐ赤く変わります。高純度のリトマス試薬を、高純度(α-セルロース99%以上)の紙に含浸させた感度、変色に優れた製品です。

Grove Solid State Relay is a non-contact electronic switch module that has relay features. Based on S208T02、it has a maximum output of 250VAC/4A、with a switching speed less than 10ms. This module is equipped with acrylic base and a 3D-printed protection insulation shield、for user's safety. The featured LED indicates that the relay is on. It can be widely used in various areas such as computer peripheral interfaces、temperature/speed light adjustment、servo control、petrochemical、medical instrumentations、financial devices、coal、meters、traffic signals、etc.。Features。Compatible with both 3.3V and 5V control level。Low switching latency(10ms)。LED on-state indicator。Featured radiator provide better stability。Acrylic base and insulation paper increase safety performance。Grove compatible

。Description。These are our small， beefy aluminum enclosures， which have been built tough enough to withstand a truck. This 2mm-thick， die-cast enclosure is rated IP54 against dust and splashing water. Because it's aluminum， it's easy to cut and drill so that you can add LCD screens， buttons and cable connections. If you want to "pretty up" your project， hit this with some fine-grit sand paper and buff it or just spray paint it!。These enclosures are perfect for producing "stomp box" style effects pedals. Try combining this with a stomp switch and some of your own secret sauce circuitry to build a sweet custom pedal.。The lid mates nicely to the top of the enclosure and is secured with 10mm long #6-32 screws(included). This aluminum enclosure version features a smoother metal finish as well as a more structurally sound design.。Features。112x61x31mm

SKF Bearing Lock Nut And Locking Device - KMT 11 Use this lock nut from SKF to secure a bearing to a shaft。It has three locking pins that allow you to accurately position the lock nut at right angles to the shaft。The pins are adjustable， so you can compensate for any slight angular deviations of neighbouring components。The lock nut is easy to install and remove thanks to its pin-locking system。Its also reusable， so its a long-lasting option。This robust component is compatible with high axial loads. Axial static load carrying capacity of 340 kN Mass of 0.56 kg Locking screw size of M8 Recommended tightening torque of 18 Nm Application Information Textile industry Pulp and paper manufacturing Food and beverage industrySKF ロックナット及びロック装置は、ベアリングを補完するために必要です。SKF では、アダプタスリーブ、回収スリーブ、ロックナットなど、幅広いベアリングアクセサリを用意しています。 How do locking screws work 高品質The pins on this lock nut use friction to firmly secure the nut to the shaft and prevent the bearing from sliding。What types of situations is this lock nut best-suited to Thanks to this lock nuts robustness and resistance to corrosion， its particularly useful for applications that experience high heat or high vibration.

アクセサリタイプ = タイマーモジュール。シリーズ = 86 Series。Finder multi-function Timer RelayThe Finder multi-function timer relay is solid-state， compact equipment with 230VAC/DC coil. It is suitable for controlling the operation of equipment， machinery， systems or processes for a wide range of industrial applications. This timer relay can be installed into new and existing applications in an extremely hassle free-way. This timer relay performs delay functions like ON-delay， interval， symmetrical flasher (starting pulse ON)， OFF-delay with control signal， ON and OFF delay with control signal， interval with control signal ON， interval with control signal OFF， and interval with control signal ON and OFF in the range of 0.05 seconds up to 100 hours. Its affordability， optimum space management， and high-performance make it ideal for several applications in process control environments.Features and BenefitsMulti-scale timing ranges from 0.05 seconds to 100 hours like 0.05 seconds to 1 seconds， 0.5 seconds 10 seconds， 5 seconds to 100 seconds， 0.5minutes to 10 minutes， 5 minutes to 100 minutes， 0.5 hours to 10 hours， 5 hours to 100 hours Operating temperature ranges from -20℃ to 50℃ Atex versions available Screw type terminal connection Plug in type mounting LED indicatorApplicationsMachines for ceramics Machines for paper processing Printing machines Packaging machines Wood processing machines Milk processing plant Textile machines Industrial process control Motor control applications Electrical isolation Signal matching between electronic controlsCertificationsIP20 rated EAC certified cRUus certified CE certified EN 61000-4-2 EN 61000-4-3 EN 61000-4-4 EN 61000-4-5 EN 61000-4-6 EN55022

。A big sister to our EL tape、the EL panel is a similar item that comes in a 10 cm square format. You'll notice when working with it that it shares some of the same features as the EL tape：flexibility、portability、and a beautiful soft glow. It can be used as backlight for an illuminated device、or a platform for paper-cutting artwork. Post it on a flat surface or wrap it around a curved surface. Use it in a project as a lighting element or attach it to a shirt. The options are amazing.。You need an inverter to drive the EL light、to control it、please pick up an EL Shield.。Features。No heat loss。Great backlight material。High efficiency(97%)。Does not emit UV light。Soft light that is not harsh on the eyes。Waterproof、except the connecter。The higher voltage EL USB inverter is recommended because it produces a stronger light。Able to be cut into other shape。Specifications。Dimension：10 cm×10 cm。Thickness：0.4 mm - 1.0 mm。Operating Voltage：100 V～ 220 V Optimum：120 V。Operating Frequency：50 Hz～ 5000 Hz Optimum：1500 Hz - 2000 Hz。Static Capacitance：6 nf/m(20 ° C、the RH <80%)。Brightness：30 cd/m2 ～ 126 cd/m2(at 120 V、200 Hz ～ 2000 Hz)。Power：108 mw m ～ 1032 mw/m(at 120 V、200 Hz ～ 2000 Hz)。Life：approximately 8000 hours。Operating Temperature/Humidity：-10 ℃ ～ + 60 ℃/RH < 90%。Storage Temperature/Humidity：-10 ℃ ～ + 60 ℃/RH < 65%

A big sister to our EL tape、the EL panel is a similar item that comes in a 10 cm square format. You'll notice when working with it that it shares some of the same features as the EL tape：flexibility、portability、and a beautiful soft glow. It can be used as backlight for an illuminated device、or a platform for paper-cutting artwork. Post it on a flat surface or wrap it around a curved surface. Use it in a project as a lighting element or attach it to a shirt. The options are amazing.。You need an inverter to drive the EL light、to control it、please pick up an EL Shield.。Features。No heat loss。Great backlight material。High efficiency(97%)。Does not emit UV light。Soft light that is not harsh on the eyes。Waterproof、except the connecter。The higher voltage EL USB inverter is recommended because it produces a stronger light。Able to be cut into other shape。Specifications。Dimension：10 cm×10 cm。Thickness：0.4 mm - 1.0 mm。Operating Voltage：100 V～ 220 V Optimum：120 V。Operating Frequency：50 Hz～ 5000 Hz Optimum：1500 Hz - 2000 Hz。Static Capacitance：6 nf/m(20 ° C、the RH <80%)。Brightness：30 cd/m2 ～ 126 cd/m2(at 120 V、200 Hz ～ 2000 Hz)。Power：108 mw m ～ 1032 mw/m(at 120 V、200 Hz ～ 2000 Hz)。Life：approximately 8000 hours。Operating Temperature/Humidity：-10 ℃ ～ + 60 ℃/RH < 90%。Storage Temperature/Humidity：-10 ℃ ～ + 60 ℃/RH < 65%

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.

SKF Spherical Roller Bearing， 240 mm ID， 320 mm OD - 23948 CC/W33 If you need to accommodate heavy radial and axial loads， choose this spherical roller bearing from SKF。Its part of the SKF Explorer range， so it offers high load-carrying capacity and high running accuracy。Made from extremely wear-resistant materials and designed to produce low friction during operation， it provides a long service life and calls for minimal maintenance。The bearing is an open unit and features three lubrication holes and a ring-shaped groove in the outer ring， so you can top up with grease or oil easily and effectively. Tapered bore type for radial and axial loads Compact structure High precision and accommodation of angular misalignment Inside diameter of 240 mm Outside diameter of 320 mm Race width of 60 mm Application Information Paper manufacturing and printing Wind turbines Mining industry Transport 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。 Can this bearing handle misalignment 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 SKF spherical roller bearing is expertly designed to handle misalignment during installation and operation。As its designed to produce low friction， it wont overheat， even when slightly misaligned.

Description。The SparkFun Line Follower Array is a long board consisting of eight IR sensors that have been configured to read as digital bits! We have designed the SparkFun Line Follower Arrays to follow a dark line of about 3/4 inch width or smaller(spray paint or electrical tape)on a light background. Each array features visible LEDs that point upward when the board is attached(properly)so you can see what the robot sees， brightness control right on the board， and an I2C interface for reading and power control. Here at SparkFun， the RedBot Shadow Chassis was used as a test platform but really this was designed as an add-on for almost any bot.。The line follower functions by taking an 8-bit reading of reflectance for use with following lines or reading dark/light patterns and can see from about 1/4 to 3/4 inches away. The IR brightness control and indicator can be adjusted with the on-board potentiometer and is capable of showing you the strength of the IR LEDs. Illumination can be turned on and off with software to conserve power， or left on all the time for faster readings. The SparkFun Line Follower Array requires 5V of power with a supply current range of 25-185mA with strobing disabled and 16-160mA with it enabled. Additionally we have added six mounting holes to the line follower with the two inner holes designed to fit our Shadow Chassis while the other four are general purpose.。Note：As you know our Sun emits quite a bit of infrared light， making the SparkFun Line Follower Array much less effective in direct sunlight. Plan your projects accordingly!。Features。8 sensor eyes(QRE1113， like in our line sensor breakout)。I2C interface。Adjust IR brightness on the fly with a knob。Switch IR on and off with software。Switch visual indicators on and off with software。Invert dark/light sight with software。Based on the SX1509 I/O expander

Compact Series Linear Guides LH Series (Pre-Fitted Carriage)。Large self aligning property High vertical load capacity Widthstands high impact loads Highly corrosion resistant martensitic stainless steel as standard Ball cage (10 and 12mm versions only

Compact Series Linear Guides LH Series (Pre-Fitted Carriage)。Large self aligning property High vertical load capacity Widthstands high impact loads Highly corrosion resistant martensitic stainless steel as standard Ball cage (10 and 12mm versions only)

The RS Pro EPDM sponge cord often utilized for draft exclusion of windows， doors and floorboards. It can be compressed by almost 90% of its original profile. These flexible properties allow this cord to be compressed into floorboard and gaps much smaller than its original form by stretching it during the installation process.Low and high temperature capability is good Excellent resistance to weathering and ozone， water and steam Good performance in castor and some phosphate ester-based fluids

Compact Series Linear Guides LH Series (Pre-Fitted Carriage)。Large self aligning property High vertical load capacity Widthstands high impact loads Highly corrosion resistant martensitic stainless steel as standard Ball cage (10 and 12mm versions only) retains balls when carriage is removed from the rail Carbon steel

Compact Series Linear Guides LH Series (Pre-Fitted Carriage)。Large self aligning property High vertical load capacity Widthstands high impact loads Highly corrosion resistant martensitic stainless steel as standard Ball cage (10 and 12mm versions only) retains balls when carriage is removed from the rail Carbon steel

Compact Series Linear Guides LH Series (Pre-Fitted Carriage)。Large self aligning property High vertical load capacity Widthstands high impact loads Highly corrosion resistant martensitic stainless steel as standard Ball cage (10 and 12mm versions only) retains balls when carriage is removed from the rail Carbon steel

。Compact Series Linear Guides LH Series (Pre-Fitted Carriage)。Large self aligning property High vertical load capacity Widthstands high impact loads Highly corrosion resistant martensitic stainless steel as standard Ball cage (10 and 12mm versions only) retains balls when carriage is removed from the rail Carbon steel

Compact Series Linear Guides LH Series (Pre-Fitted Carriage)。Large self aligning property High vertical load capacity Widthstands high impact loads Highly corrosion resistant martensitic stainless steel as standard Ball cage (10 and 12mm versions only) retains balls when carriage is removed from the rail Carbon steel

Compact Series Linear Guides LH Series (Pre-Fitted Carriage)。Large self aligning property High vertical load capacity Widthstands high impact loads Highly corrosion resistant martensitic stainless steel as standard Ball cage (10 and 12mm versions only) retains balls when carriage is removed from the rail Carbon steel