Item features: PH range: 0.1-14.0 Auf? solution: pH Accuracy: pH Temperature range: 0.1-80.0 31.2 - 176 Auf? sung: 0.1/0.1 Accuracy: 0.5 EC range: 0-1999us/cm, 10.01-20.0MS/s cm, 2000-10000uS/cm Auf? sung: 1uS/cm 10uS/cm 0.01mS/CM Accuracy: 2%FS TDS range: 0-1000ppm, -ppt Auf? sung: 1ppm 10ppm Accuracy: 2%FS LC range: 0,1-4,0 mg/L Auf? sung: 0,1mg/L ORP range: 999mv Auf? sung: 1mv Accuracy: 15mV Batteries: 3 AAA batteries, not included Size?? e: 160x80x26mm, 220g Display: LCD Digital Display Backlighting: Application control Temperature: Automatic temperature compensation 0-60 Operating environment: 0.1-80; Relative humidity: Max. 90% pH calibration: pH: 6.86/4.00/9.18 or 7.00/4.00/10.01 Properties: 6 IN 1 APP METER: Powered by a mobile app, professionally measures pH, ORP, chlorine, EC, TDS and temperature. Suitable for drinking water, hydroponics, laboratory, aquarium. Cloud data management system: Real-time accurate Bluetooth data transmission, the measured value is clear at a glance. It allows you to store, manage and share your test data at any time, and you don't have to worry about data loss. Automatic pH calibrator: using a highly sensitive glass probe, compared to other pH meters, pH is 3-point calibration, our pH is 5-point calibration, equipped with powder calibration (pH 4.00, pH 6.86, pH 9.18 and pH 7.00, pH10.01), you can easily calibrate to ensure the accuracy of your measurements. Information display: Simply dip the pH meter electrode into the solution to be measured and the measured value is quickly displayed in the app. Multiple parameters are displayed at the same time, and the mobile app controls the backlight display. High-precision water quality detection: The high-precision algorithm chip and electrodes of our digital water quality detector ensure an accurate and fast response. The green backlit LCD design ensures that you can read measurements in all conditions. Scope of delivery: Host*1 Manual*1