MQ-131 Ozone Gas Detection Sensor Module - Analog & TTL Output
The MQ-131 is a semiconductor-based ozone (O3) gas detection sensor module offering dual analog and TTL-level digital outputs for easy integration with microcontrollers like Arduino, ESP32, and Raspberry Pi. It provides high sensitivity to ozone within a 10 PPB to 2 PPM detection range, suitable for air quality monitoring applications.
Features
- High-sensitivity semiconductor sensor for ozone (O3) detection.
- Dual output: analog voltage (0-5V) and TTL-level digital signal.
- Detection concentration range: 10 PPB to 2 PPM Ozone.
- Compact module with mounting holes for fixed installation.
- Compatible with 5V logic systems (Arduino, Raspberry Pi, ESP32).
Out of stock
The MQ-131 ozone gas sensor module utilizes a tin dioxide (SnO2) semiconductor sensing element. In clean air, the sensor’s conductivity is low. When ozone gas is present, the conductivity increases proportionally with the gas concentration. An onboard circuit converts this change in conductivity into corresponding analog and digital output signals for measurement.
The module is designed for straightforward integration into environmental monitoring systems, portable detectors, and air quality stations. It features a plug-in probe design for easy testing and replacement, along with an indicator LED for visual output status. The sensor also exhibits cross-sensitivity to other oxidizing gases like chlorine (Cl2) and nitrogen dioxide (NO2), which should be considered for specific application filtering.
Additional Information
| Weight | 0.008 kg |
|---|---|
| Dimensions | 3.2 × 2.2 cm |
