Ammonia, nitrogen, oxygen, alcohol, aromatic chemicals, sulfide, and smoke are all detected by the MQ-135 gas sensor. The chip MQ-3 gas sensor’s boost converter is PT1301. This gas sensor’s working voltage ranges from 2.5V to 5.0V. As a gas-detecting material, the MQ-3 gas sensor has a reduced conductivity to purify the air. Polluting gases can be found in the atmosphere, however, the conductivity of the gas sensor rises as the concentration of polluting gas increases. The MQ-135 gas sensor can detect smoke, benzene, steam, and other dangerous gases. It has the ability to detect many hazardous gases. The MQ-135 gas sensor is inexpensive to acquire.
PINOUT
| Output | Digital & Analog |
| Current | 150mA |
| Operating |
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| Heating Voltage | 5V ± 0.1 |
| Output Voltage |
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| High sensitivity |
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| Detection |
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SPECIFICATIONS
| Operating Voltage | 2.5-5.0V |
| Detecting Concentration | 10ppm-300ppm for NH3 10ppm-1000ppm for Benzene 10ppm-300ppm for Alcohol |
| Load Resistance | Adjustable |
| Heater Resistance | 33Ω ± 5% |
| Heater Consumption | less than 800mW |
| Operating Temperature | -10 to 45°C |
DOCUMENT
SHIPPING LIST
- 1 x MQ-135 Air Quality Sensor
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