7 in 1 PH Meter Water Quality Monitor Tester Pen and one Bestway Surface Skimmer Non Slip such as classrooms

such as classrooms

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7 in 1 PH Meter Water Quality Monitor Tester Pen and one Bestway Surface Skimmer Non Slip such as classrooms5 IN 1 Digital Water Quality Tester+Bestway Surface Skimmer Discount combination products for sale Description5 IN 1 Digital Water Quality Tester Feature: Multi functional water quality test pen, which can measure ph pH, solubility, EC conductivity, salinity and temperature. (Sea salt fresh water salt) It is a waterproof water quality test pen with five functions. It has high performance, pen design and fast numerical value. Parameters: Sea salt: Sea