MQ-136 Gas Sensor Hydrogen

brand: SainSmart SKU: 101-60-123
$29.99
DESCRIPTION

Senitive material of MQ136 gas sensor is SnO2, which with lower conductivity in clean air. When the target Hydrogen sulfide gas exist, the sensor’s conductivity is higher along with the Hydrogen sulfide concentration rising. Please use simple electric circuit, Convert change of conductivity to correspond output signal of gas concentration. MQ136 gas sensor has high sensitity to Hydrogen sulfide, Low sensitivity for other combustible gas. It is with low cost and suitable for different application.

 

FEATURE 
  • Good sensitivity to Hydrogen sulfide
  • Long life and low cost
  • Simple drive circuit

Application:                      

  1. Domestic Hydrogen sulfide detector
  2. Industrial Hydrogen sulfide detector
  3. Portable Hydrogen sulfide detector

 

SPECIFICATION

Model No.

MQ136

Sensor Type

Semiconductor

Standard Encapsulation

Bakelite (Black Bakelite)

Detection Gas

Hydrogen sulfide

Concentration

1-200ppm (Hydrogen sulfide)

Circuit

Loop Voltage

Vc

â‰?4V  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

�00mW

Sensing Resistance

Rs

2KΩ-20KΩ(in 50ppm SO2 )

Sensitivity

S

Rs(in air)/Rs(50ppm NH3)�

Slope

α

�.6(R100ppm/R50ppm H2S)

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 Hydrogen Module For Arduino UNO Mega2560 R3 Raspberry Pi