TDS/PH&TEMP 3 In 1 Test Pen Handheld Water Quality Tester For Drinking Water, Laboratory, Aquaculture, Swimming Pool, Aquarium

TDS/PH/Temperature Meter 3 in 1 ► 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