MQ-131 Ozone Gas Detection Sensor Module
Product Details
The MQ-131 Ozone Gas Detection Sensor Module is designed to detect ozone (O₃) gas in the surrounding air. It features high sensitivity to ozone, analog and digital signal outputs, and an onboard signal indicator.
The module operates on 5V DC and can be integrated with compatible microcontrollers for air quality monitoring, environmental sensing and IoT applications.
Key Features
Detects ozone (O₃) gas
Detection range: 10 ppb to 2 ppm
Analog (AO) and digital (DO) outputs
Digital output with active LOW signal
Onboard signal indicator LED
High ozone sensitivity
Fast response and recovery
Compact PCB design
Technical Specifications
Sensor Model: MQ-131
Gas Detected: Ozone (O₃)
Operating Voltage: DC 5V
Operating Current: 150mA
Detection Range: 10 ppb – 2 ppm
Analog Output: AO voltage signal
Digital Output: DO TTL signal (Active LOW)
Signal Indicator: Onboard LED
Package Includes
1 × MQ-131 Ozone Gas Detection Sensor Module
Note: Sensor warm-up and calibration are required for accurate ozone concentration measurements. Use suitable voltage-level interfacing when connecting to 3.3V microcontrollers such as ESP32.
