YIERYI Chlorine Meter & Pool Salt Tester, 7 in 1 pH Tester

YIERYI Chlorine Meter & Pool Salt Tester, 7 in 1 pH Tester & Salinty M – Yieryi

WiFi Zigbee 7 in 1 Chlorine Meter PH ORP EC TDS Salinity Temp CL Salt Water ppm Tester APP Control Monitor for Swimming Pool Spa - AliExpress

Yieryi pH Meter Digital 7 in 1 PH/Temp/TDS/ORP(mv)/EC (Conductivity)/FAC(ppm)/Salinity(ppt) Chlorine Tester Water Quality Tester for Swimming Pools, Hydroponics, Fish tank, Drinking Water

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Chlorine pH EC TDS Salinity ORP Temp 7 in 1 Pool Spa Fish Meter Monitor Tester