Winsen MH-Z14A IR CO2 Sensor Module - UART/Analog/PWM Output
The Winsen MH-Z14A is a non-dispersive infrared (NDIR) carbon dioxide sensor module offering UART serial, analog voltage, and PWM output interfaces, designed for integration with microcontrollers like Arduino, Raspberry Pi, and industrial PLCs for precise CO2 concentration measurement.
Features
- NDIR sensing principle ensures high selectivity and long-term stability with no oxygen dependence.
- Triple-output interface: UART serial communication, 0-3V analog voltage, and configurable PWM waveform.
- Built-in temperature compensation for accurate readings across varying environmental conditions.
- Compact PCB module with pre-calibrated sensing element for easy system integration.
- Low power consumption suitable for continuous monitoring in HVAC, IAQ, and industrial safety applications.
Out of stock
The MH-Z14A employs non-dispersive infrared (NDIR) technology to detect carbon dioxide concentrations in ambient air. Its optical path and infrared detector are engineered for high sensitivity and resolution, providing reliable measurements from 0 to 5000 ppm (or up to 10000 ppm depending on configuration). The module features sophisticated signal conditioning circuitry that outputs data via a user-selectable interface.
Designed for durability, the sensor includes compensation for environmental variables and is resistant to water vapor interference, ensuring stable performance in applications ranging from commercial building automation to agricultural monitoring. Its digital UART output allows for direct communication with host processors, while the analog and PWM outputs provide compatibility with standard data acquisition systems.
Additional Information
| Weight | 0.017 kg |
|---|---|
| Dimensions | 5.75 × 3.45 cm |












