MQ131 Ozone Gas Detection Module For ozone gas (O3) Detector Module - Buy Online in India

Package Includes:

• 1 x MQ131 Ozone Gas Detection Module

Specifications:

• Datasheet

1. What are gas sensors? How do they work?

• Gas sensors (also known as gas detectors) are electronic devices that detect and identify different types of gasses. They are commonly used to detect toxic or explosive gasses and measure gas concentration. 
  Gas sensor detects the presence or concentration of gases in the atmosphere. Based on the concentration of the gas the sensor produces a corresponding potential difference by changing the resistance of the material inside the sensor, which can be measured as output voltage. Based on this voltage value the type and concentration of the gas can be estimated.

2. What is MQ-131 Ozone gas sensor?

• MQ131 Ozone Gas Sensor Module is a compact board based on the MQ-131 sensor. It is equipped with a very wide range sensitivity to ozone which able to detect ozone concentration up to (10～1000ppb) in ambient air. The tin dioxide (SnO2) is the sensor’s sensitive material, has a low conductivity (high resistance) in a clean air environment, and react really good in a presence of ozone. Thus, causing the sensor to be very sensitive in presence of ozone. The higher the ozone concentration the better the conductivity. The board has a trimmer to set the threshold value, analog output and digital output (TTL), status LED for power supply and output signal. The digital output can be connected directly to a microcontroller. The analogue output provides a voltage (0-5 VDC) that increases with increasing ozone concentration in the air. It can be used with Arduino or other microcontroller.              

3. What is the operating voltage for the MQ131 Ozone Gas Detection Module?

• The MQ131 operates at a voltage range of 4.5V to 5V DC

4. How does the MQ131 sensor detect ozone gas?

• The MQ131 sensor uses SnO2 (tin dioxide) as the sensitive material, which has lower conductivity in clean air. When ozone gas is present, the sensor’s conductivity increases, allowing it to detect ozone concentrations ranging from 10 to 1000 ppb

5. How do I calibrate the MQ131 sensor for accurate measurements?

• The MQ131 sensor comes pre-calibrated, but for precise measurements, it is recommended to perform a final calibration in the specific environment where it will be used. This involves adjusting the sensor’s output to match known ozone concentration levels

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