Features: Quality Material: Made of high-quality ABS material for enhanced durability. Backlight Display: Easy-to-read screen that allows use in low-light conditions. High Precision: Accurate to 0.1pH with a resolution of 0.01pH for reliable measurements. Easy Operation: Simple and convenient to use. Replaceable Electrode: Offers cost-effective maintenance. Wide Application: Suitable for measuring pH levels in drinking water, hydroponics, aquariums, swimming pools, and laboratories. Specifications: Power Supply: DC 9V (battery not included) Measurement Range: 0.00–14.00pH Resolution: 0.01pH Accuracy: ±0.1pH Temperature Compensation: 0–50°C (32–122°F) Operating Environment: Temperature: 0–50°C (32–122°F), Relative Humidity: Less than 85% Calibration Mode: Manual single-point calibration Material: Plastic Color: As shown in image Package Contents: 1 x Digital pH Meter Note: Light reflection and differences in display screens may cause slight variations in color between the product image and the actual item. Measurement error tolerance is +/- 1–3 cm.