TDS/PH/Temperature Meter 3 in 1
► Measuring range: pH:0.00-14.00 pH; TDS: 0-19990ppm
► Resolution: 0.01 pH; 1ppm; 0.1℃; 0.1°F
► Accuracy: pH: +/-0.01 pH; TDS: +/-2%; Temp: 0.5℃
► Batteries: 3 * 1.5V LR44 button cell(not included)
►Temp.: 0.1-60.0℃; 32.0-140.0°F
►Calibration: pH: three points automatic calibration (6.86 & 4.00 & 9.18pH); TDS: 1413ppm
►Auto shut off: 5 Minutes