Features: Easy to use and read the digits, convenient to use. Our water quality tester can be used to test pH & temperature. Light and mini size, measures 230x42x42mm/9x1.7x1.7in, wearable to wear. Press "TEMP" button can shift temperature meter between fahrenheit degree and centi-grade degree. Suitable for water, cheese, fruit, plant soil, etc. Specifications: Material: ABS Item size: approx 230x42x42mm/9x1.7x1.7in Packing size: approx 260x110x60mm/10x4x2.4in Power supply: 3x LR44 button battery( Not Included) Measuring range: 0-14 Accuracy: 0.1 Compensated temperature range: 0.1℃--60.0℃ Power voltage: 4.5V Working temperature: 0-80℃ Support: BT5.2 Waterproof: IP67 Package Includes: 1x PH Tester note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.