Waterproof EC/TDS/Temp Pocket Tester–Low Range AD31

Model: AD31 Type: Waterproof EC/TDS/Temperature Pocket Tester Measurement Range: Low-range EC/TDS (depends on probe) Temperature Compensation: Automatic (ATC) Display: LCD with stability indicator Probe: AD32P, interchangeable Conversion Factor: Selectable at 1 point Battery Indicator: Low battery symbol Power Supply: 4 × 1.5V batteries (included)