Feature: 1. Dual Functions: for rapid measuring the pH value and temperature of the tested liquid. 2. pH Value Measuring: 0.00~14.00pH measurement range, 0.01pH resolution, and ±0.1pH accuracy. 3. Temperature Measuring: 0~50℃ (32~122℉) measurement range, 0.1℃ (0.2℉) resolution, and ±1.0℃ accuracy, ℃/℉ temperature unit switchable. 4. Reliable Quality: high sensitivity waterproof probe smart chip for fastly and accurately measurement, and 1.2-inch clearly LCD screen with green backlight dual display the pH value and temperature. 5. Portable Compact Design: mini pen type pH meter, just powered by 4pcs LR44 button cell batteries, long term standby, conveniently for carrying around and real-time measurement anytime anywhere. 6. Wide Applications: can be used in the aquaculture, fish pond, fish tank, other industrial and agricultural production and scientific research that need to test the pH value and water quality. Specification: Material: ABS Range: pH: 0.00-14.00pH Temperature: 0-50℃ (32-122℉) Resolution: pH: 0.01pH Temperature: 0.1℃ (0.2℉) Accuracy: pH: ±0.1pH Temperature: ±1.0℃ Temperature Compensation: 0-50℃ Operating Temperature: 0-50℃ Supply Supply: 4 x 1.5V LR44 battery (Not included) Screen Size: 25 x 18mm / 0.98 x 0.71in Small Screwdriver Size: 91 x 10mm / 3.19 x 0.39in Item Size: 175 x 37mm / 6.89 x 1.46in Item Weight: 124g / 4.37oz . Package List: 1 x PH Meter1 x Electrode1 x Storage Case1 x Manual (English)