TECHTONGDA Waterproof High Precision PH Detection Pen PH Test Pen PH-80

Parameters: Measuring range: 0-14PH Temperature range: 0-80℃(33-176℉) Resolution ratio: ±0.1PH 0.1℃ Precision:±0.1PH Display screen: LED Size: 153*32*18mm Net weight: 53.9g Calibration: key calibration(4.00 7.00 10.00), Three calibration Self-closing: Five minutes without any operation,the machine automatically shut down the power Instruction: 1. Open the protective cover. 2. Press the POWER switch to turn on the detection pen. 3. Soak the front end of the pen (with probe) in water. 4. Gently shake to remove adsorbable bubbles from the probe. 5. Wait for the value to stabilize (about 10 seconds), then press the hold button to take out the detection pen and read the value. 6. After use, press the POWER button to close the detection pen. (056286) Item included(056286):(056286) PH Detection Pen

Small error and meticulous workmanship. Quality assurance and after-sale care. Waterproof digital lock screen. Three buttons lock the reading, with temperature measurement.