$50 - $75

Part Number: P101350VN

90433-97 Thermowell, 316 Stainless Steel, 12" Length, 1/2" Connection by Digi-Sense

To match your probe to a thermowell, first measure the distance from the probe's tip to the top of the thread (typical thread length is 0.5" for 1/2" NPT fittings). Next, match this length to the probe depth of the thermowell ("A" dimension). Other thermowell sizes and materials are available - call our Application Specialists for more information.

• Limited-Space Thermowell when you need a shorter insertion depth.
• Standard Thermowell for general-purpose applications.
• Heavy-Duty Thermowell for higher fluid velocity ratings.

TDSK340000/G Conductivity Standard Solution, 340000uS (Gal) by Sensorex

TDS/Conductivity instruments and sensors must be calibrated together. For a single-point calibration, select the one solution that approximates the expected conductivity or ppm level of total salts. Mixed Salt standards are the most frequently used in the field to sample naturally occurring water sources, boiler feed water, or cooling tower water. Typical river water, well water, or lake water sample will contain a mixture of several different salts. Sensorex Mixed Salt standards simulate a "Natural" mixture of common salt compounds found in these sources. Sodium sulfate, sodium bicarbonate, and sodium chloride salts are blended to provide a representative value. There are certain applications where Single Salt Solutions are preferred. NaCl Solution is routinely used to calibrate instruments measuring Sea Water or brackish water samples. Reagent grade salt and high resistivity DI water is compounded for accurate results. KCI Single Salt Solution may be used with conductivity meters that read directly in Siemens or Ohms. KCI (potassium chloride) is established as an international calibration standard for conductivity measurement. Choose the conductivity calibration solution that is right for your application. CA Residents: Prop 65 WARNING(S)

Wall Mount, Adjustable, For up to 36in. Fans, Yellow

201T-S Plastic 3-in-1 Combination pH Electrode by Apera

The 201T-S Plastic 3-in-1 Combination pH Electrode tests pH and temperature simultaneously and supports auto temperature compensation. It is an economic choice for a reliable pH electrode.

Not suitable for testing in strong base solution (pH>12), highly corrosive liquid, or for constant testing in high temperature (>60°C).

Compatible Models: PH400, PC400, PH400S, PC400S

• Adopts gel KCL electrolyte, no need to refill.
• Detachable probe cap, easy to clean.
• The electrode's body adopts polycarbonate housing, which is shock-resistant and corrosion-resistant, ideal for both lab and in-field use.

TDS300/G Conductivity Solution, 300ppm/445uS, 1Gal by Sensorex

TDS/Conductivity instruments and sensors must be calibrated together. For a single-point calibration, select the one solution that approximates the expected conductivity or ppm level of total salts. Mixed Salt standards are the most frequently used in the field to sample naturally occurring water sources, boiler feed water, or cooling tower water. Typical river water, well water, or lake water sample will contain a mixture of several different salts. Sensorex Mixed Salt standards simulate a "Natural" mixture of common salt compounds found in these sources. Sodium sulfate, sodium bicarbonate, and sodium chloride salts are blended to provide a representative value. There are certain applications where Single Salt Solutions are preferred. NaCl Solution is routinely used to calibrate instruments measuring Sea Water or brackish water samples. Reagent grade salt and high resistivity DI water is compounded for accurate results. KCI Single Salt Solution may be used with conductivity meters that read directly in Siemens or Ohms. KCI (potassium chloride) is established as an international calibration standard for conductivity measurement. Choose the conductivity calibration solution that is right for your application. CA Residents: Prop 65 WARNING(S)

18525-37 Type J Thermocouple Probe Insulated Wire Probe with Sealed Tip with Mini-Connector, 15ft L 24 Awg by Digi-Sense

Do not subject type J exposed-junction probes to moisture as they will rust

• Each Probe is hermetically sealed and tested to 25psi
• Can be used for applications requiring an isolated junction.
• Response Time: 0.75 seconds or greater
• All insulated-wire probes include straight insulated cable with no handle and feature ANSI color-coded mini connectors: type J - black, type K - yellow, and type T - blue.
• Custom designs or changes to this product are available upon request

SCT-108.002.A1 pH Combination Electrode by ScichemTech

• Plastic Three-in-One combination pH electrode measure pH and temperature simutaneously
• ATC
• General measurement
• 8 pin connector

0554 3111 Valve core remover by Testo

The valve core remover provides a quick and easy way to replace leaking valve cores without losing refrigerant or having to evacuate the system. The integrated storage compartment provides space for replacement valves so that new valves are always ready to hand.

• Compatible with all common refrigerants
• Easy installation, quick replacement of leaking valve cores without evacuating the system
• No loss of refrigerant when removing and installing valves
• Integrated storage compartment with 3x spare valves
• Durable ball valve
• 1/4" SAE standard size, 5/16" SAE with adapter

Includes:

• Valve core remover

*Please note we can only ship RKI products to customers within the United States

Old Part Number: P1013700N
New Part Number: P1013700PN

Part Number: P120830LM1

Part Number: P197150LM3

TK1015-Z Alkalinity (P/T) Test Kit, 1 drop = 50 ppm as CaCO3 by AquaPhoenix

EndPoint ID Drop Count Test Kit, P&T Alkalinity

1 drop = 50 ppm as CaCO3 / 25 mL

Build your brand with EndPoint® ID test kits that are private labled with your company logo and contact information. EndPoint ID test kits include color pictures, icons and video to help simplify the testing process. Each kit comes with instructions, reagents, and test vial all packaged in a durable plastic case. Test kit case and reagents can be private labeled with your company logo and contact information.

EndPoint ID Features:

• Color coded caps for easy test parameter identification
• Color pictures to help identify color changes while testing
• Scannable QR codes link to training videos via your smart phone
• Visual icons for testing and safety tips to remind users of best practices
• Interferences are listed for increased accuracy
• Printed on durable synthetic paper that is waterproof, chemical-resistant and tear-resistant
• Private labeled with your company logo and contact information

TDSK70/G Conductivity Solution,32.8ppm/70uS, 1 Gal. by Sensorex

TDS/Conductivity instruments and sensors must be calibrated together. For a single-point calibration, select the one solution that approximates the expected conductivity or ppm level of total salts. Mixed Salt standards are the most frequently used in the field to sample naturally occurring water sources, boiler feed water, or cooling tower water. Typical river water, well water, or lake water sample will contain a mixture of several different salts. Sensorex Mixed Salt standards simulate a "Natural" mixture of common salt compounds found in these sources. Sodium sulfate, sodium bicarbonate, and sodium chloride salts are blended to provide a representative value. There are certain applications where Single Salt Solutions are preferred. NaCl Solution is routinely used to calibrate instruments measuring Sea Water or brackish water samples. Reagent grade salt and high resistivity DI water is compounded for accurate results. KCI Single Salt Solution may be used with conductivity meters that read directly in Siemens or Ohms. KCI (potassium chloride) is established as an international calibration standard for conductivity measurement. Choose the conductivity calibration solution that is right for your application. CA Residents: Prop 65 WARNING(S)

Old Part Number: P101640
New Part Number: P101640PA

Part Number: P126510LM4

Part Number: P126550LM10

93405 Camera Adapter for Sony Mirrorless, RASA 8 by Celestron

Mirrorless cameras are spreading like wildfire in the astroimaging community and for good reason. When paired with Celestron's groundbreaking 8" Rowe-Ackermann Schmidt Astrograph (RASA), you can achieve spectacular deep-sky astronomical images.

So what makes a mirrorless camera the perfect match for RASA? First, the compact camera body provides minimal obstruction when placed on the front of the RASA optical tube. Second, the sensitive imaging chip helps capture every bit of stunning detail that the RASA optical brings in.

If you'd like to use your Sony mirrorless camera with the 8" RASA, this adapter is a must-have accessory. Using the camera's integrated bayonet mount, it attaches securely to the front of RASA. What's more, this adapter places the camera's sensor at the precise backfocus distance for optimal image sharpness.

• Connect your Sony mirrorless camera to the 8" RASA with one simple solution - no other adapters required.
• Places the camera sensors at the proper backfocus distance for the 8" RASA for pinpoint stars across the entire field of view.
• Uses the camera's bayonet mount for a secure connection that won't rotate once installed.
• Made of machined aluminum with black anodized finish.