Feature: 1. High-sensitivity probes help you accurately measure and control the PH value of the water quality of aquaculture products. 2. Advanced technology makes the test results fast and accurate, and is widely used in chemical and other industries to measure. 3. High‑definition display, clear and intuitive reading, easy to view and use by different groups of people. 4. Press TEMP/CAL button to switch PH value, Celsius °C, Fahrenheit °F at random. 5. The ATC temperature compensation function can automatically compensate the water temperature to 0‑60°C for detection. Specification: Item Type: PH Water Quality Analyzer Material: ABS Size: Approx. 153 x 30 mm / 6 x 1.2 in Weight: Approx. 101g / 3.56oz Purpose: It is widely used in chemical industry, metallurgy, environmental protection, pharmaceutical and biochemical, food, aquarium, aquaculture, and pH detection of aqueous solutions. It is a good helper for life and travel. PH Range: 0.00-14.00 pH Battery Properties: LR44 Button battery x 2 (Not included ) ON/OFF: Power Button Celsius Range: 0-60℃ Fahrenheit Range: 32-140℉ Press TEMP/CAL to switch PH value, Celsius °C, Fahrenheit °F at random. Accuracy: ±0.01PH, automatic calibration, 5 minutes intelligent shutdown. The test water temperature is more accurate at about 25°C. Different temperatures will produce slight deviations in the results. The ATC temperature compensation function can automatically compensate the water temperature to 0-60°C. Package List: 1 x Water Quality Testing Pen(Battery not Included) 1 x Manual Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.