CO-SM30 series are Electro-chemical type Carbon monoxide gas sensing modules. Their multiple layer Temperature change effect compensation algorithms enable to keep the accuracy and stability over through full temperature and concentration range.

∙ Application : Industries and life safety, Automatic indoor ventilation system

∙ Measurement Range : 0~250ppm(Default), 0~1,000ppm(optional)

∙ Accuracy : < ± 3 % F.S.

∙ Input Power : 3.3VDC(3.2V ~ 3.5V) / 5VDC(4.5V ~ 5.5V)

∙ Output : UART, I2C, PWM, Alarm


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 UART, I2C, and PWM outputs for easy application and use.