High-quality materials: made of high-quality material, more . Backlight display: easy to read, will not affect the use in the dark. The interchangeable electrode and the 9V removable battery can be easily replaced worldwide. Easy to operate: more convenient and cost-effective. Wide application: suitable for measurement in drinking water, hydroponics, aquariums, swimming pools, laboratories, etc. Type: Portable PH meter Display mode: large screen with backlight digital display Measuring range: 0.00-14.00PH Accuracy: +/-0.1PH Temperature compensation range: 0-50 (Celsius) Power supply voltage: DC 9V removable battery (V) Working temperature: 0-50 (Celsius) colour:White Material:ABS Package Contents: 1 x Host 1 x Probe 1 x English manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.