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Ozone sensor MQ131 breakout-Sensors
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  • Ozone sensor MQ131 breakout-Sensors
  • Ozone sensor MQ131 breakout-Sensors
  • Ozone sensor MQ131 breakout-Sensors
  • Ozone sensor MQ131 breakout-Sensors
Ozone sensor MQ131 breakout
SKU: 333110
$18.34
39 items available

Add-Ons

24/7 lifetime customer and technical support

2-year Warranty -no questions asked

Comprehensive Documentation

Open-source everything

Description

The MQ131-H is the high concentration version of the MQ131 ozone sensor, designed for detecting ozone (O₃) levels in the 10–1000 ppm range. This sensor offers good sensitivity to O₃ and operates on the semiconductor detection principle, making it well-suited for industrial and environmental applications. The MQ131 sensor's sensitivity and selectivity enable it to effectively detect and measure ozone levels, making it a valuable tool for applications such as air quality monitoring, ozone generators, and ozone leakage detection systems. By integrating the MQ131 sensor with appropriate electronic circuits and microcontrollers like Dasduino, you can create systems that provide real-time ozone concentration monitoring and trigger alerts when hazardous levels are detected. The breakout board works with both digital (DO) and analog signals (AO). The digital output is obtained by setting a threshold value with a potentiometer, while the analog output will vary depending on the intensity of the detected gas.
Product usage tips:
  • When gas is detected, the LED will light up. It will remain off if no gas is detected.
  • The board includes two mounting holes for easy installation on surfaces.
  • Four male headers are included but need to be soldered by the user.
Complimentary technical support

In case you ever get stuck with using this product, you can count on us. We provide free, no-strings-attached technical support with this product. Just reach out to us with your questions, and we'll be there to help you.
Open-source

Open-source culture is rooted deep inside us, and that’s reflected in our products. This product follows the open-source principle. It was made with the community’s suggestions and needs in mind. With a modular design, it can be modified to your needs and incorporated into your projects. We provide all the design documentation needed free of charge on our Github repository.
Qwiic

Our Qwiic ecosystem provides plug‑and‑play connectors for solderless connections, enabling you to add sensors and modules without wiring errors. Get up and running in seconds, whether you’re a beginner or a professional. Full documentation is available on our Qwiic page so you can explore all features and supported modules.
Made in EU

Soldered products, designed and manufactured in Croatia, are thoroughly tested and meet the highest EU standards of quality and safety.

Technical Specifications

  • Sensor: MQ131
  • Detects: ozone
  • Detection range: 10 ... 1000ppb ozone
  • Power supply: 5 V
  • Output: 1V at 200ppb O3
  • Dimensions: 22 x 38 mm / 0.9 x 1.5 inch

Resources & Documentation

DEVELOPMENT & RESOURCES
ARDUINO LIBRARY PINOUT DRAWING OPEN SOURCE HARDWARE FILES PRODUCT DATASHEET HARDWARE DETAILS ARDUINO LIBRARY DOCUMENTATION
CERTIFICATES & COMPLIANCE
CE CERTIFICATE UKCA CERTIFICATE
DOCUMENTATION & TUTORIALS
FULL PRODUCT DOCUMENTATION GETTING STARTED WITH ARDUINO

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