Milwaukee C66 Waterproof Conductivity EC/Temp Tester with Replaceable Electrode

Milwaukee Instruments
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Milwaukee C66 Waterproof Conductivity meter. Ideal for Aquariums, Hydroponic grown and Labs.


1 - Protective Cap

1 - Hard Carrying Case

1 - 20 mL 1413 µS/cm sachet of calibration solution

1 - Calibration screwdriver

3 - 1.5V Alkaline Battery

1 - Instruction Manual

The Milwaukee Sharp EC Waterproof tester is a conductivity meter suitable for heavy-duty applications such as waste-water treatment and agriculture, and has automatic temperature compensation, manual one-point calibration, and automatic shutoff for low battery to prevent erroneous readings. It has an IP67 waterproof casing. Conductivity meters are commonly used in the water-quality testing, waste-water treatment, hydroponics, agriculture, and aquaculture industries, in cosmetics manufacturing, and in laboratory research. Conductivity meters, also known as electrical conductivity (EC) meters, measure the ability of a solution or material to conduct an electrical current. This measurement helps determine if the solution is, for example, contaminated or contains too much saline.

Note: Shipping available for the USA and Canada.


Milwaukee C66

Range 0.00 - 10.00 mS/cm  
Resolution 0.01 mS/cm
Accuracy ± 2% full scale
Calibration Manual 1 point
Electrode Replaceable MA73076
Temp. Compensation Automatic 0 - 50°C
Battery Life 250 hours of continuous use
Battery Type 3 x 1.5V
Environment 0 - 50°C / 100% RH

Professional, easy to use waterproof conductivity tester

  • Replaceable electrode
  • IP67 Waterproof casing
  • Automatic Temperature Compensation
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