[High Accuracy pH Meter]: This digital pH meter features a built-in sensitive electrode sensor. Simply turn it on, and the pH result appears on the digital screen within seconds. Measures the full pH range from 0.00 to 14.00 with an accuracy of ±0.01. [Automatic Calibration]: The digital pH meter has an automatic calibration function that adjusts according to water temperature and quality. Obtain pH readings within seconds during testing. Calibrate the meter using the one-touch "CAL" button with calibration buffer powder. [Automatic Temperature Compensation]: Eliminates the need to manually adjust for liquid temperature. The built-in ATC (Automatic Temperature Compensation) function automatically adjusts for variations in water temperature and quality. [Wide Application]: This water pH meter measures the acidity and alkalinity of water, helping monitor drinking water quality and maintain optimal pH balance. Suitable for testing drinking water, swimming pools, aquariums, hydroponics, wine, beer, and more. [Easy to Use]: Remove the protective cap, immerse the electrode into the solution, and press the button to begin measurement. No more relying on color comparisons with litmus strips. For prolonged inactivity or after frequent use, recalibrate the device using the auto-calibration function. Material: Plastic Color: Grey Package Contents: 1 x pH Meter Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3cm.