1. Material: PPO shell, inner core galvanized copper
2. Weight: About 42 grams
3. Size: about 16.3x2.9x1.6 cm
4. Test items: TDS/conductivity/temperature
5. Test range: 0-9999PPM
6. Resolution: 1PPM
7. Temperature test range: 0-99 degrees Celsius
8. Accuracy: +/-2%
9. Power supply:Contains a 3V button battery (CR2032)
10. Scope of application: Used in water treatment industry, drinking water industry, family, personal home travel, field work, etc. as a drinking water quality inspection tool
11. Features: LED backlight display, convenient reading, clear eye protection, data retention, Fahrenheit/Celsius conversion, high-precision probe, light and portable
12. Note: When the PPM value is less than 40, the backlight is green; when the PPM value is greater than 40, the backlight is red
13. Influencing factors: Water temperature, TDS pen can not be used to measure high temperature water (for example: hot water); water flow rate, TDS pen can not be used to measure water with large shaking; region, each region, city due to different pipelines and water sources , TDS values are different