Features 1、PH Tester: This digital PH tester is calibrated at the factory, with the press of auto calibration button, it will automatically recognize calibration solutions for accurate readings. 2、Bluetooth Connection: This PH tester supports data export via email, allowing you to sync data on your smartphone APP, compatible with for IOS and for Android system. 3、High Sensitivity: Equipped with high sensitivity glass probe, this water quality tester enables quick and easy readings of accurate pH values. 4、Reading Lock: With one key reading lock function, even if the pH meter is removed from the sample, you can still read the value. 5、Versatile Applications: This pH temp tester is suitable for various water quality testing scenarios, including water source monitoring, aquaculture, agricultural irrigation, laboratory use, and farming. Specification Item Type: PH Temperature Tester Material: ABS Model: BT300 Range: PH: 0.00-14.00PH; Temp: 0-50℃ (32-122℉) Resolution: PH: 0.01PH; Temp: 0.1℃ (0.2℉) Accuracy: PH: ±0.03PH; Temp: ±1.0℃ Battery: 9V 6F22 280mAh lithium battery x 1 (built in) Temperature Compensation: 0-50℃ Working Temperature: 0-50℃ Package List 1 x PH Temperature Tester 1 x Instruction Manual 1 x Storage Box