Features:
1. This is a digital TDS meter tester to test the filter water quality purity, to check the performance of your water filter, to check for hardness (1grain=17ppm), to make sure you always drink pure water.Saves measurements for convenient reading and recording.
2. Auto-off function: turns off meter after 5 minutes of non-use to conserve batteries
3. Automatic temperature compensation
4. Shift between TDS and Conductivity
5. Can be used in : Water purifiers and filters, food (vegetable, fruit) & drink quality monitoring, pools and spas, aquarium, hydroponics

Specifications:
1. Measurement range:
EC:0—9990Ous/cm; TDS:0-9990ppm; Dearees Celsius: 0.1-80.0
Celsius; Fahrenheut:32.0-176.0 Accuracy: ±2%
2. Size: 154mm*30mm*14mm
3, Color: White

How to use it:
1. Please unplug the electrode sleeve before use
2. Press the switch , place the electrode into the test solution.
3. After the numerically stable , press the HOLD button and take it out of the solution to read.
4. After reading , turn off the meter , wipe clean the electrode before sleeving it.

Note:
1. Keep the electrode clean , cover the electrode protective sleeve , please take out the batteries for long periods idle.
2. This product requires a 3V CR2032 button battery, but We do not provide it, please kindly note.