Digitaler Pool-Wasserqualitätsmonitor 6 in 1 PH/EC/CL/TDS/ORP/Temp-Meter-Detekto
Suitable for drinking water, hydroponics, laboratory, aquarium. The water in the pool should be between 6.5 and 8 ph and the ORP between 487 and 840 mV, and the chlorine level is displayed normally.