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Model Number: MQ-135
Key Specifications/Special Features:
Module applications:Probe for home, hazardous gas detection device environment, be suitable for ammonia, aromatic compounds, sulfur compounds, benzene vapors, fumes and other gases harmful gases, gas sensors tested concentration range: 10 to 1000ppmModule Features:1, using high-quality dual-panel design, with power indicator and TTL signal output instructions;2, with a DO switch signal (TTL) output and analog output AO;3, TTL output valid signal is low. (When the output low signal light can be directly connected microcontroller or relay module)4, the higher the voltage, the concentration of the analog output voltage is higher.5, air quality, hazardous gas detection have better sensitivity.6, there are four screw holes for easy positioning;7. Product dimensions: 32 (L) * 20 (W) * 22 (H)8, with a long life and reliable stability9, rapid response recovery characteristicsElectrical performance:Input voltage: DC5V Power (current): 150mADO output: TTL digital 0 and 1 (0.1 and 5V)
AO output: about 0.1-0.3V (relatively clean), the highest concentration voltage 4V
Special note: When the sensor is powered, needs to warm up about 20S, measured data becomes stable, heat sensor is a normal phenomenon, because the inside with an electric wire, if not normal hot.
Wiring:
1, VCC: positive power supply (5V)
2, GND: negative one
3, DO: TTL switching signal output
4, AO: Analog output
AO output: about 0.1-0.3V (relatively clean), the highest concentration voltage 4V
Special note: When the sensor is powered, needs to warm up about 20S, measured data becomes stable, heat sensor is a normal phenomenon, because the inside with an electric wire, if not normal hot.
Wiring:
1, VCC: positive power supply (5V)
2, GND: negative one
3, DO: TTL switching signal output
4, AO: Analog output
Main Export Markets:
- Asia
- Mid East/Africa
- Western Europe