$10 - $15

FLT002 Vertical-mount Float Switch in Polypropylene with 1/8' NPT Fitting, 30VA by Chicago Sensor

• Versatile, economical and compact.
• Normally closed; float can be removed, inverted and replaced for normally open operation.
• 1/8" NPT tapered stem threading; self-sealing; does not come with a nut.
• Warranted against manufacturer defect for one year from delivery date.

SCT-108.002.IB Negative Electrode Polishing Paper by ScichemTech

• Polishing paper special for cleaning negative electrode
• 2 pcs/pack

TDS15000/P Conductivity Solution, 15,000ppm/16,630uS, 1Pt 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)

18527-76 Dual Thermocouple Connector, Mini, Female, Type-K; 1/ea by Digi-Sense

• Glass-filled nylon construction with molded barriers to prevent short circuit
• Each connector comes in ANSI color coded material: type J-black, type K-yellow, and type T-blue

MA9069 5000 μS/cm Conductivity Calibration solution - 230 ml Bottle by Milwaukee

The performance of conductivity probes are affected by use due to residue build up and aging.

MA9069 is a lab grade 5000 μS/cm conductivity solution standard prepared against a NIST traceable potassium chloride solution that allows you to recalibrate your conductivity meter or tester. Check your meter or tester's manual to find the correct calibration standard for your meter.

Conductivity readings are effected by temperature. To help with this, a chart of the actual μS/cm value at various temperatures is printed on each bottle

Milwaukee conductivity solutions are labeled with the lot number and expiration date and packaged in an air tight, tamper-proof sealed bottle.

DESIGN FEATURES

• Fundamental for accurate conductivity measurement.
• Factory calibrated with potassium chloride NIST 2202 SRM (Standard Reference Material) in deionized water for analytical use in accordance with ISO 3696/BS3978.
• Sealed against light with air tight, tamper proof cap.
• Each 230 mL bottle is marked with lot number and expiration date.
• A temperature chart of the actual µS/cm value at various temperatures is printed on each bottle.
• 5 year expiry date.

08080-84 Stainless Steel Bimetal Pocket Thermometer, 1.75" Dial, Glass Lens, 8" Stem, 0 to 100C, 1C Div by Digi-Sense

• Factory tested to three points with a ±1% accuracy
• Minimum immersion: liquids 2" (50 mm), gases 4" (100 mm)
• Hermetically sealed dial stops internal fogging
• Recalibrate using external adjustment nut
• 304 Stainless Steel dial case and stem
• Shock resistant

Includes

All thermometers come with a statement of test and a beaker clip.

ST7705-B Sodium Thiosulfate, 0.0365N, 60mL by AquaPhoenix

• Yellow Cap
• Traceable to NIST

Specifications

• Packaging Type: Poly
• Size: 60 mL

18527-78 Dual Thermocouple Connector, Mini, Male, Type-T; 1/ea by Digi-Sense

• Glass-filled nylon construction with molded barriers to prevent short circuit
• Each connector comes in ANSI color coded material: type J-black, type K-yellow, and type T-blue

90260-01 General Purpose Liquid-In-Glass Thermometer; -10 to 150C, 50mm Immersion, Organic Liquid Fill by Digi-Sense

These thermometers are inexpensive and safe for use in laboratories, universities, food/beverage, environmental, wastewater, petrochemical, pharmaceutical and many other general-purpose applications. Choose from partial immersion or total immersion thermometers.

Thermometers feature permanently fused markings, blue spirit liquid, white background glass; are also individually serial numbered. Include a ring top and a statement of accuracy supplied by manufacturer.

• Nonmercury blue spirit liquid
• Statement of accuracy

Includes

Ring top and a statement of accuracy supplied by manufacturer.