Features: 1. 100% brand new and high quality 2. Hold function: saves measurements for convenient reading and recording 3. Auto-off function: turns off meter after 10 minutes of non-use to conserve battery 4. 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 10 image, Factory calibrated 5. This item can be used in water purifiers and filters, food (vegetable, fruits) & drink quality monitoring, pools and spas, aquariums, hydroponics.
Specifications: 1. Rang: 0-9990ppm 2. Accuracy: +/-1.5% 3. Battery: 2 x 3V Button Cell battery 4. Item size:142mm x 23mm x 13mm
Note: Do not drop the entire TDS meter in water or dip beyond the maximum immersion level. This unit is not water-tight and is not covered under the warranty if water enters the unit.