Hydroponic ppm pH Monitor, WiFi 6 in 1 pH EC Meter for Hydroponics Growing System,Continuous Monitoring pH PPM EC CF Humidity Temp of DWC Grow System Water Reservoir Tank Aeroponic Garden Aquarium...Brand: YINMIK Features: 6 in 1 pH EC PPM WIFI Monitor for hydroponic plants: YINMIK 6 in 1 hydroponic nutrients monitor can give you accurate pH, TDS, Conductivity, CF, Temperature , Air Humidity testing. YINMIK pH ppm Tester probe is new upgraded composite probe , one probe can measure all parameters of pH, TDS, EC and TEMP at the same time, fully meet the needs of hydroponics water monitoring. Continuously Monitoring Reservoir Tank : This WIFI pH