WIFI Digital Aquarium pH Tester ORP Redox Meter Output Relay pH

Equipped with 2 probes (pH and redox), and 2 power sockets. ORP: -1999 ~ 1999mV. ORP: -500 ~ 500mV. 1 x Detachable 300cm ORP electrode. Fish hatchery,

Digital Aquarium Ph Tester Orp Redox Meter Output Relay

PHTK-244 Dual Display pH & ORP Redox Controller Repleaceable

2 in 1 pH ORP Redox Controller Monitor w/Output Power

DANOPLUS Smart pH ORP Controller with Remote App Monitoring

Top 10 Best Water Quality Tester 2021, Best Ph Meter

Get redox controller with free return and fast delivery. With redox controller, you can easily control the ph value and keep it stable.

PH-803W 2-in-1 PH ORP Redox Controller Wifi Output Power Relay Monitor Water Quality Tester For Laboratories Analysis Aquarium

Smart PH ORP Controller Online Monitoring and Dosing Digital pH

Wifi digital ph meter 2 in 1 ph&orp controller bnc replaceable

SMATRUL Smart WiFi pH ORP Monitor with Controller, APP Online