Gas Sensor - MQ-2
Introduction
Arduino MQ-2 gas sensor module are used in gas leakage detecting equipments in family and industry, are suitable for detecting of LPG, i-butane, propane, methane ,alcohol, Hydrogen, smoke.
Features:
Wide detecting scope
Fast response and High sensitivity
Stable and long life
Simple drive circui
Specification
Detection range: 300 to 10000ppmm
The characteristics gas: 1000ppmm, isobutane
Sensitivity: R in air / Rin, typical gas ≥ 5
Sensing Resistance: 1KΩ 50ppm toluene to 20KΩ in.
Response time: ≤ 10s
Recovery time: ≤ 30s
Heat resistance: 31Ω ± 3Ω
Heating current: ≤ 180mA
Heating voltage: 5.0V ± 0.2V
Heating power: ≤ 900mW
Measuring voltage: ≤ 24V
Working conditions of ambient temperature: -20 ℃ ~ +55 ℃
Humidity: ≤ 95% RH
Environmental oxygen content: 21%
Storage conditions Temperature: -20 ° C to +70 ° C
Humidity: ≤ 70% RH
document
[MQ-2 datasheet]
Usage
VCC - 5V GND - GND S - Analog pin0
Example code
int sensorValue; void setup() { Serial.begin(9600); // sets the serial port to 9600 } void loop() { sensorValue = analogRead(0); // read analog input pin 0 Serial.println(sensorValue, DEC); // prints the value read delay(100); // wait 100ms for next reading }
How to buy it
Click here to buy [Gas Sensor - MQ-2]