MQ-135 Air Quality Hazardous Gas

MQ-135 Air quality and hazardous gas detection sensor module for projects Sensitive material MQ135 gas sensor is used in clean air low conductivity tin oxide (SnO2). When the sensor is kept in their environment. In the polluting gases , the conductivity sensor with increasing air pollution in gas concentration increases. Using a simple circuit can change the conductivity. Conversion of an output signal corresponding to the gas concentration.

MQ135 sensor for ammonia, sulfide , benzene vapor high sensitivity of the smoke and other harmful monitor is also very good. This sensor ca be seized. Measure a variety of harmful gases , is a low-cost sensors for a variety of applications.

1. Using high-quality dual-panel design, with power indicator and TTL signal output instructions.
2. The switching signal having a DO (TTL) output and analog output AO.
3. TTL output valid signal is low. ( Low-level signal when the output light can be directly connected to the microcontroller or relay module )
4. The higher the voltage , the concentration of the analog output voltage is higher.
5. Air quality , hazardous gas detection with good sensitivity.
6. There are four screw holes for easy positioning.
7. Has a long life and reliable stability.
8. Rapid response and recovery characteristics.