Pure Water Test (PWT) enables you to check the purity of your distilled or demineralized water in laboratory or industrial environments. Ultra Pure Water (UPW) is an ideal tester for Megohm checks. PWT is ideally suited for applications such as Printed Circuit Board washing, laundry, steam cleaning, checking car battery water and all areas where distilled, demineralized or pure water is used. This tester is housed in a durable case that provides excellent protection against harsh industrial environments. The casing also features a larger LCD than previous models and is easier to handle with a more ergonomic shape.HI 98308 (PWT) is supplied complete with protective cap, calibration screwdriver, batteries and instructions. Range 0.0 to 99.9 µS/cmResolution 0.1 µS/cmAccuracy ±2% F.S.Calibration manual, 1 pointTemperature Compensation automatic, 0 to 50°C (32 to 122°F)Battery Type / Life 4 x 1.5V / approx. 250 hours of continuous useEnvironment 0 to 50°C (32 to 122°F); RH max 95%Dimensions 175 x 41 x 23 mm (6.9 x 1.6 x 0.9")Weight 95 g (3.4 oz.)