and long battery life in one of the most cost-effective TDS pen testers on the market

The Milwaukee MI0021 are Plastic 25 mL Beakers for sample testing and preparation

and other applications where pH typically stays in the acidic to neutral range

Essential for maintaining pH electrodes in aquariums (freshwater

EC Calibration: Manual

Hanna HI98304 DiST 4 EC Tester - Waterproof High Range Conductivity Meter 0-20 mS/cm Milwaukee accessories and long battery life inThe Hanna Instruments HI98304 DiST 4 is a high range electrolytic conductivity (EC) tester that can measure up to 20. 00 mS cm making it ideal for a variety of applications including water treatment, boilers and cooling towers, agricultural including hydroponics, and general laboratory use. The DiST 4 is a rugged and reliable pocket sized tester for use in the lab or field. This modern looking meter is only 0. 7" thick and extremely ergonomic, fitting