Gas sensor

This analog gas sensor for LPG 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!


Measurement range

300 - 10000 ppm

Measureable substances

Liquefied petrol gas (LPG), propane, methane, butane and other combustible gases

Application areas

Detecting gas leaks, gas alarm, robotic, microcontroller projects

Compatible with

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

Special features

High sensitivity, good sensitivity for combustible gas in a wide range of concentrations

Analog Output

Values are processed by the microcontroller

Digital Output

thresholds can be set


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

Response time

≤ 10 s

Heating voltage

5.0 V ± 0.2 V

Heating resistance

31 Ω ± 3 Ω at room temperature

Heating power

≤ 900 mW

Surface resistance of sensitive material

2 -20 KΩ in 2000ppm propane C3H8

Operating temperature

-10 - 50 °C

Additional information


35 x 20 x 21 mm

Items shipped




Article No.


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KY-053 Analog-Digital Converter

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