COD-400 series are Electro-chemical type Carbon monoxide gas sensing Transmitter with relay, enable users change the factory default activation level  and hysteresis as needed.

∙ Application: Automatic indoor ventilation system,  Industrial

∙ CO Measurement Range: 0~250ppm (default), 0~1000ppm (order specification)

∙ Accuracy : ±3% F.S.

∙ Temperature ±0.4℃ (-40~100℃)

∙ Input power: 4-wire 24VAC ± 20%, 50/60Hz / 3-wire 24VDC ± 20%

∙ Output mode: 4~20mA, Voltage 0~10/2~10V / Relay

COD-400 DATASHEET DS_COD-400_Ver2.0.pdf첨부파일 COD-400 OPERATION GUIDE OM_COD-400_ver1.0.pdf첨부파일


ELT Sensor is a company located in Korea and leads gas sensor technology with 20 years of experience and top technology in NDIR gas sensor field.

The module is an electrochemical "carbon monoxide" gas measurement module.
It is shipped after individual calibration and calibration before the product is shipped to ensure high accuracy and stability.

Carbon monoxide measurement sensors can be applied to various areas related to carbon monoxide poisoning, such as general residential environments, gas boiler carbon monoxide alarms, pensions, lodging facilities, camping, restaurants, industrial sites, gas stoves, and heaters.

It supports Analyst A-out output (4-20 mA (default), 0-20 mA, 0-10V, 2-10V) and provides SPST Relay, which can be easily applied to PLC and PC for use in industrial sites.