mobile APP provides 4 types of measurement display 7 In 1 Tds/ec/salinity/temp/orp/res/ph Meters Water Quality Tester Pen
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7 in 1 Convenient Digital PH meter/TDS/EC/Salinity/SG/ORP/TEMP Multifunctional Water Quality Tester PH Meter Pen
$17.50 - $24.50
Min Order: 1 piece
Shipping per piece: $8.74