Description
Co Carbon Monoxide Coal Gas Sensor MQ7
- Size: 35mm × 22mm × 18mm
- Detection of gas: carbon gas
- Heating voltage: 5 ± 0.2V (AC · DC)
- Working current: 140mA
- Loop voltage: 10V (maximum DC 15V)
- Load resistance: 10K (adjustable)
- Detection concentration range: 10-1000ppm
- Clean air voltage: ≤1.5V
- Sensitivity: ≥3%
- Response time: ≤1S (preheat 3-5 minutes)
- Response time: ≤30S
- Element power: ≤0.7W
- Working temperature: -10 ~ 50 ℃ (nominal temperature 20 ℃)
- Humidity: 95% RH (nominal humidity 65% RH)
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