MQ-131 ozone Cl2 e NO2 gas sensor module for Arduino, Raspberry Pi and MCU

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The MQ-131 ozone gas sensor module has high sensitivity to ozone, and also has sensitivity to strong oxide such as Cl2, NO2 etc. It was created specifically for Arduino, Raspberry Pi and easy to implement in various MCU.

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Availability: In stock

Excl. Tax: €40.25 Incl. Tax: €49.11

Product Description

Details

Sensitive material of MQ-131 gas sensor is O3 SnO2, which with lower conductivity in clean air. When the ozone gas exists, the sensor’s conductivity gets lower along with the gas concentration rising. The conversion of the output signal, according to the gas concentration detected, is entrusted to a simple circuit, in order to be so easily interfaced to microcontroller or discrete in development kit such as Raspberry and Arduino.
 
Technical specification:
Detection range: 10ppb~2ppm
Working voltage: 5.0V±0.2V AC or DC
• with the signal light indicates the output
• the dual signal output (analog output, and TTL-level output)
• TTL output valid signal is low
• the analog output increases with the concentration, the higher the voltage the higher the concentration
• the ozone gas with high sensitivity
• with a long life and reliable stability
• fast response characteristics
• with mounting holes to facilitate fixed installation

Model No.
MQ-131
Sensor Type
Semiconductor
Standard Encapsulation
Plastic
Detection Gas
Ozone
Concentration
10PPB-2PPM Ozone
Circuit
Loop Voltage
Vc
≤24V DC

Heater Voltage
VH
5.0V±0.2V AC or DC

Load Resistance
RL
Adjustable
Character
Heater Resistance
RH
31Ω±3Ω(Room Tem.)

Heater consumption
PH
≤900mW

Sensing Resistance
Rs
50KΩ-500KΩ(in 50ppm O3)

Sensitivity
S
Rs(in air)/Rs(in 50ppm O3)≥3

Slope
α
≤0.6 (R50ppm/R10ppm O3)
Condition
Tem. Humidity
20℃±2℃; 65%±5%RH

Standard test circuit
Vc:5.0V±0.1V
 VH: 5.0V±0.1V

Preheat time
Over 48 hours


Dimension: 32 x 22 x 30mm


Connection mode:
1. GND
2. AO
3. DO
4. VCC

Additional Information

Additional Information

SKU P16092240
Output Type Analogic
Input Voltage 5 V
Terminals THT
Target PCB

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