XIANQI Feature:1. Liquid crystal display, high definition display is clear, the value is easy to read.2. Can be used as water purifier detection, tap water detection, aquaculture detection, including plant breeding, aquaculture and so on.3. The titanium alloy probe has accurate anti-rust sensitivity and is free from magnetic interference.4. The button is easy to understand, durable and convenient in function. After tens of thousands of keyboard tests, it's durable.5. It takes up no space and is easy to carry.Specification:Measurementvalue : 0-9990m Precision value: 2%Battery specification: 5v x 2 pieces (button battery) (not included)Shell material: ABSSize: 20*20*150mm/0.79*0.79*5.91inColor: blue,Package List:1 x Water Quality TesterNote:Due to different monitor and light effect, the actual color of the item may be slightly different from the color shown in the pictures. Thanks!Please allow 1-2cm measurement deviation due to manual measurement.