MH-Z19 二氧化碳气体传感器（以下简称传感器）是
一个通用型、小型传感器，利用非色散红外（NDIR）原理
对空气中存在的CO2 进行探测，具有很好的选择性，无氧
气依赖性，寿命长。内置温度补偿；同时具有数字输出与
波形输出，方便使用。该传感器是将成熟的红外吸收气体
检测技术与精密光路设计、精良电路设计紧密结合而制作
出的高性能传感器。
特点
高灵敏度、高分辨率、低功耗
提供UART、PWM波形等多种输出方式
温度补偿，卓越的线性输出
优异的稳定性
使用寿命长
抗水汽干扰、不中毒(MH-Z19 carbon dioxide gas sensor (hereinafter referred to as sensor) is

A universal and small sensor using the principle of non dispersive infrared (NDIR).

The detection of CO2 in air has good selectivity and no oxygen.

Gas dependence and long life. Built-in temperature compensation; at the same time it has digital output and

Waveform output, easy to use. The sensor is a mature infrared absorption gas

Detection technology is closely combined with precise optical design and excellent circuit design.

A high performance sensor.

Characteristic

High sensitivity, high resolution, low power consumption

Provide a variety of output modes, such as UART, PWM waveform, etc.

Temperature compensation, excellent linear output

Excellent stability

Long service life

Anti water vapor interference, no poisoning)