Brand: SainSmart

[discontinued] MQ-131 Gas Sensor Ozone Module

SKU: 101-60-122
€26,99
Ups, 0 verfügbar.
DESCRIPTION

 Sensitive material of MQ131 gas sensor is O3 SnO2, which with lower conductivity in clean air. When Ozone gas exists. The sensor’s conductivity is more higher along with the gas concentration rising. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration.

MQ131 gas sensor has high sensitity to Ozone, also sensitive to O3 CL2, NO2, etc.

 

FEATURE
  • with the signal light indicates the output;
  • the dual signal output (analog output, and TTL-level output);
  • TTL output valid signal is low; (low output signal light, can be accessed by the microcontroller IO port)
  • the analog output increases with the concentration, the higher the voltage the higher the concentration;
  • the ozone gas with high sensitivity (detection concentration range 10PPB-2PPM Ozone)
  • with a long life and reliable stability;
  • Fast response characteristics;
  • with mounting holes to facilitate fixed installation;
  • the probe can plug design for easy testing.

 

Model No.

MQ-131

Sensor Type

Semiconductor

Standard Encapsulation

Stainless steel

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 Temp

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

 

 

WHAT'S IN THE PACKAGE
  • 1x Sainsmart MQ131 Gas Sensor Ozone Module For Arduino UNO Mega2560 R3 Raspberry Pi