Features: 1. The LCD has a luminous display, and the measurement results can be directly displayed on the screen for easy observation. 2. Using the latest microcomputer technology, it is specially designed for on site rapid measurement, which is suitable for providing reliable measurement results in harsh environments. 3. The response speed is fast, easy to use, stable and high, and easy to carry without frequent adjustments. 4. Easy to operate, install 4 x button batteries (not included), insert the measuring probe into the liquid to display the value. 5. Made of high quality PVC material, it is durable, wear resistant, corrosion resistant and can be used for a long time. Specification: Item Type: PH Meter Material: ABS Color: As shown in the picture Product Size: Approx. 175x49x27mm / 6.89x1.93x1.06in Weight: Approx. 122g / 4.3oz Battery: 4 x 1.5V LR44 button battery(Not included) Range: 0.00~14.00PH Resolution: 0.01PH Accuracy: ±0.1PH Temperature Compensation: 0℃~50℃ Working Temperature: 0℃~50℃ Package List: 1 x PH Meter(Battery Not Included) 1 x Debugging Tool 1 x Instruction Manual Features Clear and Luminous Display: LCD screen provides easy observation of measurement results, even in low light conditions. Rapid and Reliable Measurements: Utilizes advanced microcomputer technology for fast and accurate on-site testing, ensuring dependable results in harsh environments. Convenient and Portable: Fast response time, user-friendly operation, and compact design make it easy to carry and use without constant adjustments. Easy Operation: Simply insert the measuring probe into the liquid to display the pH value, making it effortless to operate. Durable and Long-lasting: Made from high-quality PVC material, this acidity meter is resistant to wear, corrosion, and built to withstand long-term use.