Waterproof TDS Testers Have the Best Accuracy of Any Pocket-Sized Meters
Replaceable electrode adds life to these Waterproof TDS Testers, so they work more like hand-held, longer-life units, without the added expense. Automatic temperature compensation. 6.5"L x 1.5" dia. Full scale. Operating temperature: 0°–50°C (32°–122°F). Hold function freezes readings. Push-button calibration.
Automatic shutoff conserves batteries. Units are still faster, more accurate and more durable than water-hardness test kits. The ideal TDS Testers for field use, water analysis, agriculture and many types of industrial, HVAC and other water treatment systems.
Waterproof TDSTestr—Low (No. 78240) has a range of 0–1990 ppm. Resolution: 10 ppm. Accuracy: ±1%. Waterproof TDSTestr—High (No. 78241) has a range of 0–10.00 ppt. Resolution: 0.10 ppt. Accuracy: ±1%.
TDS Calibration Kit (No. 78249) also available.