1Multi Purpose: Bluetooth PH meter adopts high accuracy planar electrode, which can measure dough, skin,fruit, solid, liquid, etc. 2LCD Display: Skin PH meter adopts LCD large screen display, which is clear, soft light and not dazzling, and can easily cope with various environments. 3Data Synchronization: Smart PH tester can display data synchronously, and the instrument data will be synchronized to the mobile APP, which can display multiple data at the same time. 4Exchangeable Electrode: The electrode of pen type PH tester can be replaced and maintained more conveniently. 5Compact Portable: PH meter is compact in structure design, small in size, and convenient to carry and use in a bag. Item Type: Bluetooth PH Meter Material: ABS PH Range: 0.00-14.00 Temperature Range: 0.1C-60.0C, 32.1F-140.0F Temperature Resolution: 0.1C; 0.1F Temperature Accuracy: 0.5C PH Calibration: 6.86/4.00/9.18 or 7.00/4.00/10.01 (two Optional Calibration Modes) You Can Check the Calibration Record. Replaceable Electrode: Diamond Electrode (3.3 KCL M Electrode Storage Solution). Temperature ATC: 0.1C-60.0C Environment: 0.1C-80C; Relative Humidity: 90% Maximum Waterproof: IP67 Battery: 4 x 1.5V (lR44) Not Included; Low Battery Indicator Bluetooth: Bluetooth Mobile Phone Version 5.2 Mobile Phone Control: Support Widely Used:Can Measure Dough, Skin,Fruit, Solid, Liquid, Etc. Weight: Approx. 251g / 8.9oz 1 x Bluetooth PH Meter 5 x Test Package 1 x User Manual