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MQ-131 Ozone Gas Detection Sensor Module

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Gas Sensors for everyday users

The MQ-131 Ozone Gas Detection Sensor Module is a mid-range gas sensors designed for everyday users. It features Item Type: Gas Sensor and Width (mm): 22.

₹1,949
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Total: ₹1,949
Buying tip: A well-rounded choice at a fair price. Recommended for most buyers.
Estimated delivery: 24 Aug7 Sept
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Quick Specs

Item Type: Gas Sensor
Width (mm): 22
Weight (g): 8
Shipping Weight: 0.01 kg
Shipping Dimensions: 3 × 3 × 3 cm

Ideal For

Electronics projectsArduino / Raspberry Pi buildsPrototyping
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SKU: robu-975810Category: Gas Sensors

About This Product

The MQ-131 Ozone Gas Detection Sensor Module is a mid-range gas sensors designed for everyday users. It delivers reliable performance at an accessible price.

Key Specifications

  • Item Type: Gas Sensor
  • Width (mm): 22
  • Weight (g): 8
  • Shipping Weight: 0.01 kg
  • Shipping Dimensions: 3 × 3 × 3 cm

Why Buy from Elecvora?

Elecvora sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.

MQ-131 Ozone Gas Detector Sensor Module The sensitive material of the MQ-131 gas sensor is O3 SnO2, which with lower conductivity in clean air. When Ozone gas exists. The sensor’s conductivity is higher along with the gas concentration rising. Please use a simple electro circuit, Convert the change of conductivity to correspond output signal of gas concentration. MQ-131 gas sensor has a high sensitivity to Ozone, also sensitive to O3 CL2, NO2, etc.

Features:

  1. Fast response characteristics
  2. Mounting holes to facilitate fixed installation
  3. The probe can plug design for easy testing.
  4. Signal light indicates the output
  5. Dual signal output (analog output, and TTL-level output)
  6. TTL output valid signal is low; (low output signal light, can be accessed by the microcontroller IO port)
  7. Analog output increases with the concentration, the higher the voltage the higher the concentration
  8. The ozone gas with high sensitivity (detection concentration range 10PPB-2PPM Ozone)
  9. Long life and reliable stability

Package Includes:

1 x MQ-131 Ozone Gas Detector Sensor Module

Setup Guide

1
Identify the pins
Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.
2
Wire to your microcontroller
Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.
3
Install libraries
In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.
4
Upload example sketch
Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.
5
Calibrate if needed
Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.