The professional pH meter is a reliable tool for testing water quality. Suitable for aquariums, pools, and environmental water testing. Features a replaceable electrode and a large, clear LCD with backlight for easy reading and accurate measurements. Simple to operate, durable, and designed for long-term use. Includes automatic temperature compensation (ATC) function. Certified to CE and RoHS standards for safe and precise performance. Ideal for use in water sources, aquariums, hydroponics, spas, swimming pools, and other water systems. Easy electrode replacement meets various industrial testing requirements. Specifications: pH range: 0.00–14.00 Resolution: 0.01 pH Accuracy: ±0.1 pH Temperature compensation range: 0–50°C (32–122°F) Operating environment: 0–50°C (32–122°F) Calibration: Automatic temperature compensation (ATC) Power: 4 x 1.5V AG-13 button cell batteries (not included) Color: Red Material: ABS Item size: Approx. 18 x 5 x 2.5 cm (7.1 x 1.9 x 1.0 in) Item weight: Approx. 57.1 g (2.0 oz) Package size: Approx. 21 x 10.4 x 5 cm (8.3 x 4.1 x 1.9 in) Package weight: Approx. 144 g (5.1 oz) Package contents: 1 x pH meter 1 x user manual 1 x screwdriver