MH-Z14A NDIR Infrared Carbon Dioxide Sensor Module

The NDIR infrared carbon dioxide gas detection module is a small sensor module that can detect the presence of carbon dioxide gas in the air and has a long service life. The CO2 gas absorption sensors are equipped with a temperature-compensated sensor and have a digital output, and an analog voltage output can be obtained from the PWM port

This module uses infrared and detects the presence of gas with high accuracy and has stable results. It is dual-channel and has 7 pins and sends and receives signals through the TTL port with a voltage level of 3.3 V