Digital WiFi PH Meter ORP Controller Monitor Wifi Water Quality

WQM-359 Multi-Parameter 8-in-1 Water Test Kit pH. ORP. EC Conductivity – Gain Express

PHTK-156 Digital 2-in-1 pH / ORP mV CO2 Controller Meter 0.00~14.00PH Range Water Tester - Tekcoplus Ltd.

Milwaukee MC510 PRO Digital Redox ORP Controller

PHC-342 Digital PH / ORP Controller with Monitoring and Dosing in Wate – Gain Express

ORP & pH Meter, 8651 AZ EB - AZ Instrument Corp.

Other Aquarium Fish WiFi PH ORP Controller Digital Display Water Acid Base Redox Quality Monitor For Hydroponics Pool BNC Electrode Backlit 230802 From Deng10, $112.35

YIERYI WiFi PH Monitor, 3 in 1 PH ORP Temperature Controller Monitor, Water Quality Monitoring Tester Kit US Standard 110V

WQM-397 Smart 5-in-1 pH / TDS / Salt / S.G / Temperature WiFi Tester W – Gain Express

Fast Delivery Fast Delivery Ph-301 2 In 1 Phamp;orp Controller Wifi Ph Meter Bnc Replaceable Probe Water Quality Tester For Hydroponics, Aquarium 110

ORP: -1999 ~ 1999mV. ORP: plusmn5mV. ORP: -500 ~ 500mV. Long press [b] ,until the indicator light of “pH” flashes.PH6.86 is shown in the first line.

WIFI PH/ORP Controller Digital Aquarium pH Tester ORP Redox Meter Output Relay

YIERYI Smart Bluetooth Water Quality Tester 6 in 1 PH/ TDS/ EC/ Salinity/ S.G./ Temp Meter WiFi App Intelligent Control YY-W9909-UK230v