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•  Hold function: Saves measurements for convenient reading and recording
•  Auto-function: Turns off meter after 10 minutes of non-use to conserve batteries
• Dual Range: Measures from 0-999 ppm, with a resolution of 1 ppm. From 1,000 to 9,900 ppm, the resolution is 10 ppm
•  Range: 0-9990 ppm
• Accuracy: +/- 2%
• Battery: 2 x 1.5V Button Cell Battery - Included

This Digital TDS 3 Meter is for testing water quality. Use the TDS Meter to check the performance of your water filter. You can also check for hardness (1 grain = 17ppm).With this tester in hand, make sure you always drink pure water.Feature :- High-quality- Hold function: Saves measurements for convenient reading and recording- Auto-function: Turns off meter after 10 minutes of non-use to conserve batteries- Dual Range: Measures from 0-999 ppm, with a resolution of 1 ppm. From 1,000 to 9,900 ppm, the resolution is 10 ppm- Range: 0-9990 ppm- Accuracy: +/- 2%- Battery: 2 x 1.5V Button Cell Battery - IncludedHow to use?1.Remove the protecting cap, Turn the TDS meter on2.Immerse the TDS meter electrode into the water/solution up to the maximum immersion level3.Wait until the display stabilize, Press the hold button to save readingNote:1. This item can be used in water purifiers and filters, food (vegetable, fruits) & drink quality monitoring, pools, spas, aquariums and hydroponics.2. Do not drop the entire TDS meter in water or dip beyond the maximum immersion level (approximately 2" - refer to manual for further information). This unit is not water- tight and will be damaged if water enters the unit.