Do you need a multifunctional testing instrument to help you evaluate multiple parameters of water? A 7-in-1 PH/TDS/EC/ORP/S.G/Salinity/Temp is your perfect choice. It can easily measure multiple parameters on a single device, meeting your comprehensive assessment needs for water quality. Features: 7-in-1 pH Meter: The pH meter is designed with a 7-in-1 function, which can measure pH (acidity and alkalinity), EC (conductivity), TDS (total dissolved solids), Salinity (salt content), S.G, ORP (Oxidation-reduction potential) and temperature. Simply press the {MODE/CAL} key to switch the value of pH, EC (uS/cm), TDS (ppm), Salinity (ppm/%), S.G, ORP (mV). Easy to Use: Simply immerse the pH meter electrode in the solution to be tested, pH value are quickly displayed on a large LCD display. multi-parameter display at the same time, APP control backlight display. Simply press the {HOLD/TEMP} button to lock the measured value and then take it out for viewing. Also, long press the {HOLD/TEMP} button to switch temperature units. Automatic Calibration pH Tester: With high sensitive glass probe, you can get a full measurement range of 0-14pH, 0.01 pH resolution. Compared with other pH meters, the pH is a 3-point calibration method, and our pH is a 5-point calibration method and equipped with a calibration powder (Asia Standard: pH 4.00, pH 6.86, pH 9.18, and EU Standard: pH 7.00, pH10.01), you can calibrate effortlessly to ensure the accuracy of your measurements. pH Meter with BT: Digital pH meter fully customizable parameter settings. the App can set the upper and lower limits of pH, which can be set according to your needs. when the value you set exceeds the test range, the App interface will display a red value abnormally, notifying you of any values exceeding your preset range. Cloud Based Data Management System: Accurate real-time BT data transmission and clear measured values make it easy for you to save, manage and share test data without worrying about data loss. Specifications: Material: ABS pH Range: 0.00-14.00pH Resolution: 0.01pH Accuracy: ±0.05pH EC Range: 0-9990uS/cm; 10.01- 19.99mS/cm; 20.1-200.0mS/cm Resolution: 1uS/cm; 0.01mS/cm; 0.1mS/cm Accuracy: ±2% F.S TDS Range: 0-999ppm; 1000-9990ppm; 10.1- 100.0ppt Resolution: 1ppm; 10ppm; 0.1ppt Accuracy: ±2% F.S Salt Range: 0.01-25.00%; 0-999ppm; 1000-9990ppm; 10.1- 100.0ppt Resolution: 0.01%; 1ppm; 10ppm; 0.1ppt Accuracy: ±2% F.S S.G Range:1.000 -1.222 ORP Range: -999mV~+999mV Resolution: 1mV Accuracy: ±4mV Temperature Range: 0.1~60; 32.1~140.0 Resolution: 0.1; 0.1 Accuracy: ±0.5 Calibration pH: 6.86/4.00/9.18 or 7.00/4.00/10.01 EC/TDS/Salt: 1413uS/cm; 12.88mS/cm; 111.8mS/cm ORP: 256mV TDS Factor: 0.1-3.0 (Factor Default 0.5) EC Temp Compensation: 0.1-3.0%/ (Factor Default 2.0%/) BT: mobile BT 5.2 Verson Backlight: with backlights, support mobile control Measurement Data Save: save as Excel sheet Printing: support Calibration pH: Optional two sets of calibration modes Calibration records can be viewed ATC: 0.1-60.0 Environment: 0.1-80.0; RH: max 90% Waterproof: IP67 Battery: 3 * 1.5V LR44 batteries Electrode: Replaceable Item Size: 187 * 37 * 37mm / 7.36 * 1.46 * 1.46in Item Weight: 95g / 3.35oz Package Weight: 175g / 6.17oz Package Size: 23.5 * 8 * 5cm / 9.25 * 3.15 * 1.97in Package List: 1 * PH Meter 5 * PH Reagent 1 * User Manual (English)