4 In 1 PH/TDS/EC/Temperatur Meter Digitale Wasser Qualität Monitor Tester Für Pools, Trinken Wasser, Aquarien ,Easy Reading - NO BACKLIGHT

Measuring range: pH:0.00-14.00pH; TDS: 0-19990ppm; EC: 0-19990muS/cm Resolution: 0.01 pH; 1ppm; 1muS/cm; 0.1; 0.1degF Accuracy: pH: +/-0.01 pH; TDS/EC: +/-2%; Temp: 0.5 Batteries: 3 * 1.5V LR44 button cell (not included) Temp.: 0.1-60.0; 32.0-140.0degF Calibration: pH: three points automatic calibration (6.86 & 4.00 & 9.18pH); TDS: 1413muS/cm; EC: 1413muS/cm