1It has excellent water resistance and field applicability, and all readings are automatically compensated for temperature (ATC). 2The temperature sensor directly contacts the measured solution to make the reading accurate and fast. 3PH meter has a large screen display with a high resolution and accuracy. With data retention function, it is convenient, fast and accurate. 4It has a wide range of measurement, which is simple to operate, and is suitable for testing the pH value of aquariums, drinking water, etc. 5Made of high quality plastic, durable, economical and practical, it fully meets the testing needs of various industries. Item Type: PH Meter Material: Plastic Weight: Approx. 95g / 3.4oz Range: 0.00~14.00pH Resolution: 0.01pH Accuracy: 0.05pH Temperature Compensation: 0C~50C Working Temperature: 0C~50C Product Size: Approx. 147x27x18mm / 5.8x1.1x0.7in Battery: 2 x CR1632 3V Button Battery (Battery Not Included) 1 x PH Meter (Battery Not Included) 1 x Screwdriver 1 x Manual