Specifications: Size:32* 20* 22mm (L*W*H) Input voltage: DC5V Power consumption ( current ): 150mA DO output: TTL digital 0 and 1 ( 0., 1 and 5V) AO output :0., 1-0 . Ammonia Benzene Sensor MQ-135 Air Quality Sensor Module - Al Annabi Hazardous Gas Detection DIY Project The change in conductivity can be converted to an output signal corresponding to the gas concentration using a simple circuit. Real colors may slightly differ from the pictures, as it depends on specific monitor settings and light brightness. A hazardous gas detection apparatus for the family, the environment. TTL output valid signal is low level, (output low signal light, which can be accessed microcontroller IO port). When there is a polluting gas in the environment, the conductivity in the sensor increases with the concentration of polluted gas in the air. Please check size in detail before purchase. The installation of electronic modules requires basic knowledge and requires a certain electronic professional foundation and hands-on ability., Please purchase carefully! MQ-135 Air Quality & Hazardous Gas Sensor Module MQ135 gas sensor has a high sensitivity to Ammonia, Sulphide and Benze steam, also sensitive to smoke and other harmful gases. It is at a low cost and suitable... Suitable for ammonia, aromatic compounds, sulfur, benzene vapor, and other gases harmful gas detection. DEVMO Digital Particle Concentration Laser Sensor PMS5003 PM2.5 PM10 Cable Air Quality Detection Sensor Dust Sensor Air Conditioning Monitor Module Compatible with Ar-duino Manual measurement, with small error. Long service life, stable and reliable.
