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MQ-131 Ozone Gas Detector Sensor Module

Reference RBD-3115

High-sensitivity MQ-131 sensor for ozone (O₃) detection in air (10 PPB – 2 PPM range)
Detects O₃, Cl₂, and NO₂ gases with fast response and high stability
Provides dual signal output: analog and TTL-level digital output
Signal LED indicator for easy testing and monitoring
Plug-type probe design for convenient replacement and calibration
Ideal for air quality monitoring, environmental sensing, and automation systems

Description
Product Details

Description

The MQ-131 Ozone Gas Detector Sensor Module is a versatile gas-sensing module designed for detecting ozone (O₃) concentrations in the air with exceptional accuracy and response time. Built around a SnO₂-based sensitive element, the sensor’s conductivity increases with ozone concentration, allowing for precise analog and digital signal output. It supports dual signal modes — analog for continuous measurement and TTL-level digital for threshold-based alerts — making it suitable for integration with Arduino, ESP32, and other microcontrollers. This module is highly responsive to ozone, chlorine (Cl₂), and nitrogen dioxide (NO₂), making it ideal for air quality monitoring, industrial safety systems, and smart environmental stations. The onboard LED indicator provides real-time detection feedback, while mounting holes and a detachable probe simplify installation and maintenance. Designed for reliability and long service life, the MQ-131 is a great choice for detecting trace levels of ozone in various applications. Featured By RoboticsBD.

Product Images are shown for illustrative purposes only and may differ from the actual product.

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Features:

High Sensitivity: Detects ozone (O₃) concentrations between 10 PPB and 2 PPM.
Dual Signal Output: Provides both analog and TTL digital outputs for flexible interfacing.
Fast Response: Quickly reacts to changing ozone levels for real-time monitoring.
Multi-Gas Detection: Also responds to Cl₂ and NO₂ gases.
Signal Indicator LED: Visual alert for gas detection status.
Plug-Type Probe: Easy to replace and maintain for long-term use.
Mounting Holes: Facilitates fixed installation in enclosures or monitoring stations.
Stable and Durable: Long lifespan and consistent performance in diverse environments.

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Applications:

Air Quality Monitoring: Detects ozone pollution levels indoors or outdoors.
Industrial Safety: Monitors ozone and toxic gases in factories and laboratories.
Environmental Research: Used in air analysis and pollution measurement equipment.
Smart IoT Systems: Integrates with microcontrollers for automated air sensing.
Educational Projects: Perfect for students learning gas sensor interfacing.

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General Specifications
Model	MQ-131
Sensitive Material	SnO₂ (Tin Dioxide)
Target Gases	Ozone (O₃), Chlorine (Cl₂), Nitrogen Dioxide (NO₂)
Detection Range	10 PPB – 2 PPM (Ozone)
Output Signals	Analog Voltage & TTL Digital Output
TTL Output	Low-level active signal
Power Supply	5V DC
Response Time	Fast (few seconds)
Signal Indicator	LED Light
Operating Temperature	-10°C to +50°C
Lifespan	Long and Stable Operation
Mounting	Hole-supported installation
Probe Type	Plug-and-Replace Design
Shipment Weight	0.0008 kg
Shipment Dimensions	3 × 3 × 3 cm

Please allow 5% measuring deviation due to manual measurement.

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Package Includes:

1 x MQ-131 Ozone Gas Detector Sensor Module

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Product Details

Reference RBD-3115

In stock 10 Items

Specific References

EAN13: 3115

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