Name: Xiaomi TDS Water tester
Advanced microprocessor technology, high efficient and accurate
Auto-off function: It will shuts off automatically after ten minutes of non-use to conserve batteries
Users can read and know the TDS ater value on a LCD display.
It can help you know more about the water in your normal life, know the water purity.
Details: Product Size (L*W*H): 9*5*4CM
1* TDS water tester pen