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Quick Details

  • Place of Origin: Heilongjiang, China (Mainland)
  • Brand Name: RobotBase
  • Model Number: RB-02S015
  • Usage: Gas Sensor

Packaging & Delivery

Packaging Details electrostaticsproof packaging
Delivery Time 3-5 days according to quantity

Specifications

1.Environmental protection
2.Smog announciator
3.Methane leak alarm alcohol gas sensors
MQ2 alcohol ethanol gas sensors

 

MQ2 alcohol ethanol gas sensors 

 

 

Introduction:

Now environmental consciousness is deeply among masses, indeed environmental protection demand   is growing rapidly. 2010the latest MQ -X series gas sensor is designed to meet the market demand, the gas sensor adopts MQ - 2 gas sensitive components, and it is very sensitive to smoke and methane gas in the air . You can directly insert it into sensor shield(Arduino-Compatible) with a 3p sensor connecting line, programming through  mega168 controlle(Arduino-Compatible) .Combined with relay module and buzzer module, you can make smog announciator, methane leak alarm, automatic smoke exhaust fan etc, so it is an ideal sensor to make indoor air meeting environmental protection standard.

 Attention:this sensor equipped with sensitivity control potentiometer.

MQ-2 gas sensor Parameters: 

 

A. standard working condition

 

symbol

Parameter name

Technical condition

note

  Vc

Loop voltage

≤15V

AC or DC

  VH

Heating voltage

5.0V±0.2 V

AC or DC

  RL

load resistance

adjustable

 

  RH

Heating resistance

31Ω±3Ω

roomtemperature

  PH

Heating consumption

≤900mW

 

 

B. environment condition

 

symbol

Parameter name

Technical condition

note

  Tao

Operating temperature

-10°C-50°C

 

  Tas

Storage temperature

-20°C-70°C

  RH

Relative humidity

< 95%RH

  O2

Oxygen concentration

21%(standard condition)

Oxygen concentration influence sensitivity

Minimum>2%

 

C. sensitivity

 

symbol

Parameter name

Technical condition

note

Rs

Sensitive body surface resistance

        3KΩ-30KΩ

    (1000ppm iso-butane)

Detecting concertration range

100ppm-10000ppm

liquefied gas and propane

300ppm-5000ppm  butane

5000ppm-20000ppm methane

300ppm-5000ppm hydrogen

100ppm-2000ppm ethyl alcohol

    α(3000/1000)

 iso-butane

Concentration gradient

       

          ≤0.6

Standard working condition

        temperature: 20°C±2°C    Vc:5.0V±0.1V

       Relative humidity:65%±5%   Vh: 5.0V±0.1V

Warm-up time

                  Less than 1 hour

  

 

Tested with butane in a lighter 

 

Application blogs(Copy link into browser)

Arduino hobbyist Rebecca’s blog(Palace for beginners)

http://blog.sina.com.cn/arduino 

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