Opis

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

Loop voltage
? 24 V DC

Heating voltage
5.0 V ± 0.2 V

Heating resistance
31 ? ± 3 ? 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

https://joy-it.net/en/products/SEN-MQ135