0 999PPM TDS Water Quality Test Pen Drinking Water Purifier Household Tap Water Testing InstrumentSpecification Product name TDS water quality test penProduct size 138 26 15MMProduct weight 25gMeasuring range 0 999PPMError range ±5 F STemperature range 0 60℃Number of batteries 2Battery specification 1 5Vx2 LR44 button battery Detection range water treatment industry various domestic waterPackage Included 1 x TDS water quality test pen1 x BoxDetails Pictures
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