Gas Sensor - MQ-2: Difference between revisions
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[[File:MQ-2 0.jpg|200px]] | [[File:MQ-2 0.jpg|200px]] | ||
Detection range: 300 to 10000ppmm | Detection range: 300 to 10000ppmm<br> | ||
The characteristics gas: 1000ppmm, isobutane | The characteristics gas: 1000ppmm, isobutane<br> | ||
Sensitivity: R in air / Rin, typical gas ≥ 5 | Sensitivity: R in air / Rin, typical gas ≥ 5<br> | ||
Sensing Resistance: 1KΩ 50ppm toluene to 20KΩ in. | Sensing Resistance: 1KΩ 50ppm toluene to 20KΩ in.<br> | ||
Response time: ≤ 10s | Response time: ≤ 10s<br> | ||
Recovery time: ≤ 30s | Recovery time: ≤ 30s<br> | ||
Heat resistance: 31Ω ± 3Ω | Heat resistance: 31Ω ± 3Ω<br> | ||
Heating current: ≤ 180mA | Heating current: ≤ 180mA<br> | ||
Heating voltage: 5.0V ± 0.2V | Heating voltage: 5.0V ± 0.2V<br> | ||
Heating power: ≤ 900mW | Heating power: ≤ 900mW<br> | ||
Measuring voltage: ≤ 24V | Measuring voltage: ≤ 24V<br> | ||
Working conditions of ambient temperature: -20 ℃ ~ +55 ℃ | Working conditions of ambient temperature: -20 ℃ ~ +55 ℃<br> | ||
Humidity: ≤ 95% RH | Humidity: ≤ 95% RH<br> | ||
Environmental oxygen content: 21% | Environmental oxygen content: 21%<br> | ||
Storage conditions Temperature: -20 ° C to +70 ° C | Storage conditions Temperature: -20 ° C to +70 ° C<br> | ||
Humidity: ≤ 70% RH | Humidity: ≤ 70% RH<br> | ||
==document== | ==document== | ||
Revision as of 06:28, 10 May 2012
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
How to buy it
Click here to buy [Gas Sensor - MQ-2]