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Air Quality (VOC) Sensor
1. Performance
Scope of application: MQ-K2 gas sensors apply to the home device monitoring harmful gas, such as automatic exhaust device, air cleaner, kitchen ventilator and so on. It’s sensitive to ammonia(NH4), hydrogen(H2), alcohol(C2H6O), methane(CH4), propane(C3H8), glycerol, styrene(C8H8), propanediol(C3H8O2), hydroxybenzene, methylbenzene(C7H8), ethylbenzene(C8H10), dimethylbenzene(C8H10), formaldehyde(CH2O) and any other organic volatile gas, smog and soot.
2. Appearance and dimension
3.Technical Specifications
| Voltage in clean air | V0=0.5~1.5V(depends on the loading) |
| Voltage in calibration gas | V1≥V0+1v(0.3% C4H10) |
| Response time | ≤30s |
| Recovery time | ≤60s |
| Measuring pole voltage | Vc=5v±0.1 |
| Heating pole voltage | Vh=5v±0.1 |
| Load resistor | RL=4.7K(adjustable) |
| Ambient temperature | -10℃---+50℃ |
| Relative humidity | <90% |
| Air pressure | 650-800mmHg |
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