$50 - $75

TDSK180/G Conductivity Solution, 85.2ppm/180uS, 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)

TDSNA12.5/G Conductivity Solution, 6956ppm/12,500uS, 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)

Part Number: P10135VN

Part Number: P197150LM18

08649-10 Four-Channel, Jumbo-Display Clock/Timer by Digi-Sense

This timer allows you to count up to or down from 100 hours with 1-second resolution. This timer features a 3/4" high display and multiple channels that can be used simultaneously.

Each channel has a distinctive alarm that sounds for 1 minute, pressing any button will turn off the alarm. Timer memory recalls previous time set. Features time-of-day in 12- or 24-hour formats.

Features:

• Memory returns display to previously programmed countdown time with touch of a button
• Extra-loud alarms sound for 1 minute

Includes:

Magnetic clip, stand, and button cell battery.

Part Number: P120850LA

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

Replacement Power Supply Units (PSU) for use with cradle, multiway and interface chargers or in combination with Charger Interface Communication Kit (C011305)

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

Old Part Number: P101660
New Part Number: P101660PA

Old Part Number: P120840
New Part Number: P120840LA

Part Number: P197129LM4

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

18525-26 Type T Hermetically Sealed Tip Insulated Thermocouple, 10ft 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 stripped lead ends Custom designs or changes to this product are available upon request

Part Number: P10111000PM2

Old Part Number: P1971050
New Part Number: P197110LA

Part Number: P10135000PM2

2244100 Phosphate Reagent Set (Hach) by AquaPhoenix

For determination of Reactive (Ortho-) Phosphorus (Phosphate) by the Amino Acid Method. Hach Method 8178. Range: 0.23 - 30.00 mg/L PO4. Sample Size: 25 mL Set includes: Amino Acid Reagent and Molybdate Reagent for 100 tests.