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
10 - 1000 ppm
Measureable substances
Benzene (C6H6), Ammonia (NH3), sulfide, smoke, other air pollution
Application areas
Detecting gas leaks, gas alarm, robotic, microcontroller projects
Compatible with
Raspberry Pi (with AD-converter), Arduino. etc.
Special features
High sensitivity, detection of a wide range of concentrations
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
Detection ranges
Ammonia (NH3), Alcohol: 10 - 300 ppm
Benzene: 10 - 1000 ppm
Heating voltage
5.0 V ± 0.2 V
Heating resistance
31 Ω ± 3 Ω at room temperature
Heating power
≤ 900 mW
Sensitivity
Rs (in air)/ Rs (100ppm NH3) ≥5
Operating temperature
-10 - 50 °C
Additional information
Dimensions
52 x 20 x 18 mm
Weight
8 g
Items shipped
SEN-MQ135
EAN
4250236820002
Article No.
SEN-MQ135
