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!
100 - 1000 ppm
Hydrogen (H2), diverse hydrogenous gases
Detecting gas leaks, gas alarm, robotic, microcontroller projects
Raspberry Pi (with AD-converter), Arduino. etc.
High sensitivity which can be adjusted by potentiometer, detection of a wide range of concentrations
Values are processed by the microcontroller
thresholds can be set
VCC: Voltage supply 5V, GND: Ground, AOUT: Analog Output, DOUT: Digital Output
5.0 V ± 0.1 V
29 Ω ± 3 Ω at room temperature
≤ 900 mW
Rs (in air)/ Rs (1000ppm H2) ≥5
-10 - 50 °C
52 x 20 x 18 mm