Home » 6 in 1 Temp Chlorine ORP EC TDS PH Meter Blue Tooth Online Monitor Water Quality Tester Smart Tool for Swimming Pool Aquariums 6 in 1 Temp Chlorine ORP EC TDS PH Meter Blue Tooth Online Monitor Water Quality Tester Smart Tool for Swimming Pool Aquariums 6 in 1 Temp Chlorine ORP EC TDS PH Meter Blue Tooth Online Monitor Water Quality Tester Smart Tool for Swimming Pool Aquariums. Sale price : $44.10 Category : Tools