Gas sensor

Gas sensor

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

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

Loop voltage

≥ 24 V DC

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

Dimensions

52 x 20 x 18 mm

Weight

8 g

Items Shipped

SEN-MQ135

EAN

4250236820002

Article No.

SEN-MQ135

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