YIERYI 4 in 1 pH TDS EC TEMP Water Quality Tester for Drinking Water, Aquarium, Pool

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Specification:
Product name: pH TDS EC TEMP Meter
Material: Plastic+Metal
Measuring range: pH:0.01~14.00pH
TDS:1~19999PPM
EC:1~19999US/CM
Temperature:0~60°C

Operation:
1.Remove the protective cap and protective film on the screen.
2.First rinse the electrode with distilled water, and suck it with filter paper.
3.Turn the meter on by pressing the“ON/OFF" key.
4.Immerse the pH meter electrode in the solution to be tested (can not be over the immersion line )
5.Stir gently and wait around 30 seconds till the reading stabilized.
6.After finished ,clear the electrode with pure water ,turn the meter off by pressing the "ON/OFF" key.
7.Always replace the protective cap after use.

Notes:
1.It has been calibrated by factory,use it directly.
2.After finished,clean the electrode with pure water and keep it dry.
3.Stir gently several times to ensure no air bubble around the electrode.
4.Don't disassemble the meter without permission to avaid damage.
5.Keep it dry.
6.If ph calibration is wrong,please reset.