PH Meter Pen Temp Tester Bluetooth APP Control Water Quality Monitor Tester Data Storage Support Printing for Pools Drinking Water Features: 1. Multifunctional PH, TEMP Meter 2. Bluetooth connection, APP control 3. Full screen of mobile phone, multi-parameter display at the same time 4. Two sets of calibration points are optional. 5. Low power consumption button battery(not included). 6. Mobile phone control backlight display 7. Automatic temperature compensation 0-60°C 8. Data storage/support printing 9. Precision probe Specification: Name: Bluetooth Water Quality Test Pen PH Range: 0.00-14.00 PH resolution: 0.01 PH accuracy: ±0.05pH TEMP Range: 0.1& 8451;-80.0& 8451;, 32.1& 8457;-176.0& 8457; TEMP resolution: 0.1& 8451;/0.1& 8457; TEMP accuracy: ±0.5& 8451; PH calibration: 4.00--6.86--9.18 / 4.00--7.00--10.01 Temperature compensation range: Automatic (0.1-60& 8451;) Bluetooth: Bluetooth version 5.2 Electrode: Replaceable electrodes Back light: Mobile phone control backlight Battery power: Low battery warning Use environment: 0.1& 8451;-80.0& 8451;, RH: max 90% Waterproof level: IP67 Host size: 187mm*37*37mm (7.36*1.46*1. 46in) Package List: 1* PH test pen 1* manual 3 packs of calibration powder