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
Heating voltage
5.0 V ± 0.2 V
Heating resistance
31 Ω ± 3 Ω at room temperature
Heating power
≤ 350 mW
Surface resistance of sensitive material
2 -20 KΩ in 100 ppm CO
Operating temperature
-20 - 50 °C
Additional information
Dimensions
52 x 20 x 13 mm
Weight
6 g
Items shipped
SEN-MQ7
EAN
4250236819983
Article No.
SEN-MQ7
