1. 100% Brand new and high quality
2. This item can be used in: water purifiers and filters， food (vegetable， fruits) & drink quality monitoring， pools and spas， aquariums， hydroponics
3. Hold function: Saves measurements for convenient reading and recording
4. Auto-off function: Turns off meter after 10 minutes of non-use to conserve batteries
5. Dual Range: Measures form 0-999ppm， with a resolution of 1ppm. From 1，000 to 9，990ppm， the resolution is 10ppm， indicated by drinking x 10image， Factory calibrated
6. Rang:0-9990ppm
7. Accuracy: +/-2%
8. Battery: 1 x CR2032 3V lithium battery (NOT included)

Note: Do not drop the entire TDS meter in water of dip beyond the maximum immersion level. This unit is not water-tight and is not covered under the warranty if water enters the unit.