Joy-iT MQ4 Analog Gas sensor for compressed natural gas and Methan

Joy-iT MQ4 Analog Gas sensor for compressed natural gas and Methan

This analog gas sensor has a small heating part with an electronical chemical sensor.
It is suitable for indoor usage.
The sensor can output exact values only after warmup phase.

Caution: sensor gets hot while usage!

Technical data:

Measurement range: 300 - 10000 ppm

Measureable substances: Compressed natural gas (CNG), methane (CH4)

Application areas: Detecting gas leaks, gas alarm, robotic, microcontroller projects

Compatible with: Raspberry Pi (with AD-converter), Arduino. etc.

Special features: High sensitivity which can be adjusted by potentiometer, quick reaction time

Analog Output: Values are processed by the microcontroller

Digital Output: thresholds can be set

Pins: VCC: Voltage supply 5V, GND: Ground, AOUT: Analog Output, DOUT: Digital Output

Response time: ≤ 10 s

Recovery time: ≤ 30 s

Heating current: ≤ 180 mA

Heating resistance and power: 31 ± 3Ω; ≤900 mW

Working temperature: -20 - 55 ° C