1. Purpose: Basis for detecting the replacement cycle of water purifier filter cartridges. To ensure drinking clean water.
2. Lock function: After the value stabilizes, press the HOLD key to lock the value.
2. LCD digital display, easy to read.
3. Automatically shuts off after 5 minutes of no operation.
4. Highly sensitive alloy probe for more accurate testing.
5. Measurement range: 0-9990 ppm
6. Error: +/-2% to 3%
7. Resolution: 1%
8. Power supply: 3V (LR44 button battery)
9. Dimensions: 25 x 14 x 134 mm
10. Weight: Approximately 40g