Opis

Gas sensor
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!

Specifications

Measurement range
300 - 10000 ppm

Measureable substances
Carbon monoxide (CO)

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, low temperature detection of gas

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

Loop voltage
? 10 V DC

Heating voltage
5.0 V ± 0.2 V

Heating resistance
31 ? ± 3 ? at room temperature

Heating power
? 350 mW

Surface resistance of sensitive material
2 -20 K? in 100 ppm CO

Operating temperature
-20 - 50 °C

Dimensions
52 x 20 x 13 mm

Weight
6 g

https://joy-it.net/en/products/SEN-MQ7