MH-Z19 Infrared CO2 Sensor Module for CO2 Monitor (NDIR Carbon Dioxide Sensor with UART and PWM Output)

The MH-Z19 Infrared CO2 Sensor Module is a high-performance Non-Dispersive Infrared (NDIR) carbon dioxide sensor designed for accurate CO2 concentration monitoring in indoor environments. It features high sensitivity, excellent resolution, and low power consumption, making it suitable for air quality monitoring, HVAC systems, smart home devices, and environmental monitoring applications. The module supports both UART and PWM output interfaces, allowing easy integration with microcontrollers and embedded systems while providing stable and reliable CO2 measurements.

Key Features -

• Non-Dispersive Infrared (NDIR) CO2 sensing technology

• High sensitivity and high measurement resolution

• Low power consumption

• Dual output interfaces: UART and PWM

• Built-in temperature compensation

• Excellent linear output characteristics

• Stable and reliable performance

• Long operational lifespan

• Resistant to water vapor interference

• Non-poisoning sensing technology

Specifications -

• Product Type - Carbon Dioxide Sensor Module

• Model - MH-Z19

• Sensing Technology - Non-Dispersive Infrared (NDIR)

• Gas Detected - Carbon Dioxide (CO2)

• Output Interface - UART

• Output Interface - PWM

• Temperature Compensation - Built-in

• Response Characteristics - High Sensitivity and High Resolution

• Water Vapor Resistance - Yes

• Sensor Life - Long Service Life

Applications -

• Indoor air quality monitoring

• Carbon dioxide monitoring systems

• HVAC control systems

• Smart home automation

• Air purifiers

• Greenhouse monitoring

• Schools and office buildings

• Environmental monitoring

• Industrial ventilation systems

• IoT and embedded electronics projects