Winsen MQ131 High Concentration Ozone Gas Sensor


In stock

SKU: 1278811
  1. Product: Ozone Gas Sensor
  2. Model: MQ131
  3. Output Voltage: Vs ≥1.0V(in 200ppm O3)
  4. Sensitivity S: Rs(in 200ppm O3) / Rs(in air)≥2


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In stock

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Brand: Winsen
Category: Gas and Dust Sensor

Ozone sensors design for monitoring ground-level ozone; known to irritate the nose and lungs

Sensitive material of MQ131 gas sensor is semiconductor metallic oxide, which with high conductivity in clean air. When the ozone gas exists, the sensor’s conductivity gets lower along with the gas concentration rising. Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit. MQ131 ozone gas sensor has high sensitivity to ozone, and also has sensitivity to strong oxide such as Cl2, NO2 &etc. It responses oppositely to organic interference gases.

Our ozone sensors and monitoring systems are widely used across a range of applications, from industrial hygiene to virus disinfection and the sterilization of commercial and residential buildings.


  1. Small in size
  2. Best quality product
  3. High sensitivity, high resolution, low power consumption
  4. Fast response time
  5. Excellent stability
  6. Long lifespan
  7. Anti-poisons, anti-vapor interference


  1. Model: MQ131
  2. Sensor Type: Semiconductor
  3. Standard Encapsulation: Bakelite, Metal cap
  4. Target Gas: Ozone
  5. Detection range: 10~1000ppm Ozone
  6. Tem. Humidity: 20℃±2℃;55%±5%RH

Note: For More info check User Manual  

Packages Includes: 

1 x Winsen MQ131 High Concentration Ozone Gas Sensor

SKU: 1278811 Category:


Sensor Type


Standard Encapsulation

Bakelite, Metal cap

Target Gas


Detection range

10~1000ppm Ozone

Tem. Humidity


Shipment Weight

0.004 kg

Shipment Dimensions

4 × 3 × 2 cm

15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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User Manual

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Country Of Origin: China