GEEKHOM Digital TDS Meter Water Quality Tester to test the filter water quality purity, to check the performance of your water filter, to make sure you always drink pure water. SPECIFICATION: < - TDS Test Range: 0-9990ppm(mg/L) - Temperature Measurement range: 0-99°C/ 32-212°F. Accuracy:±0.1°C - Accuracy: ±2% F.S - Battery: CR2032 button cell (included) - Power Supply Voltage: DC3V;230mAh. - Use environment: 0- 50°C Maximum relative temperature is 95% - Auto-off time: 6 min - Calibration: factory calibrated - Size: 16.2×2.9×1.5cm - Weight: 28g/1oz How to use it: 1. Please unplug the electrode sleeve before use. 2. Press the ON/OFF switch, place the electrode into the test solution no more than 4cm (From the beginning of TDS Meter). 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. ●Keep the electrode clean, cover the electrode protective cap. ●Is not used for a long time, please remove the batteries. ●TDS shows 0~9 pure water, 10~60 is Mountain spring water, mineral water, 60~100 is purified water, 100~300 is running water, over 300 is contaminated water. ●EC unit is mS/cm, the normal range of EC is between 1-4mmhos/cm(or mS/cm)1ms = 1000 us, so 400 uS/cm =0.4mS/cm, it is means 0.4EC. Package includes: 1 X Water Quality Tester 1 X User Manual 1 X Free Leather Storage Bag Precautions 1.Don't drop the entire TDS meter in water or dip beyond the maximum immersion level. 2.Don't store the TDS meter under high temperature or direct sunlight. This will shorten the life-span of the product. Please avoid collisions, weight or fall.
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