DUC2-COD Online COD Meter Controller for Sewage Plant 

Daruifuno's online COD controller is a digital instrument. It can be connected with digital COD sensor of ultraviolet absorption method to realize real-time monitoring of COD value of water quality. Widely used in waterworks, sewage plants, industrial production processes and other occasions that need to evaluate the COD trend. The COD controller has two SPST relays for control and two 4-20mA current output. Features of COD Controller ● Compatible with all DRFN digital COD sensors; ● Can display COD TOC TU and BOD parameter; ● The working status of the DO sensor can be queried, including reading the serial number; ● Time and historical data recording function; ● 3.2-inch large LCD screen; ● User-friendly Eng…