GAS sensor board – MQ-135
Fitted with the MQ135 sensor, this small board can detect the presence in the air of hazardous gases such as: ammonia (NH3), nitrogen oxides (NOx), alcohol, benzene vapors, smoke, carbon dioxide (CO2)
SKU 1606-MQ135GASEAN 8219671120722Item type: AssembledSensors, Sensors
Description
Equipped with the MQ135 sensor, this small board is able to detect the presence of dangerous gases in the air such as: ammonia (NH3), nitrogen oxides (NOx), alcohol, benzene vapors, smoke, carbon dioxide (CO2). It has high sensitivity and very fast response times. The board is equipped with a trimmer to set sensitivity, analog output (AO), digital output (DO), and a status LED. The digital output can be connected directly to a microcontroller, Arduino, Raspberry Pi, etc.
Technical specifications
- Detectable gases: ammonia (NH3), nitrogen oxides (NOx), alcohol, benzene vapors, smoke, carbon dioxide (CO2)
Documentation and useful links
Technical details
| Sensor type | semiconductor |
|---|---|
| Preheating time | 20 seconds |
| Power supply | 5 Vdc |
| Consumption | 150 mA |
| Operating temperature | from -10°C to +45°C |
| Dimensions (mm) | 32x20x22 |
| VCC | 5V |
| GND | ground |
| AO | analog output 0-5 volts |
| DOUT | digital output (TTL) |
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