3Pcs MQ-7 MQ7 CO Carbon Monoxide Gas Sensor Module For Arduino
Specification:
Detection range: 10 to 1000ppmm
Characteristic gas: 100ppmm CO
Sensitive resistance: 2KΩ to 20KΩ in 100ppm CO
Sensitivity: ≥ 3%
Response time: ≤ 1s
Recovery time: ≤ 30s
Heating resistance: 31Ω ± 3Ω
Heating current: ≤ 180mA
Heating voltage: 5.0V±0.2V / 1.5±0.1V
Heating power: about 350mW
Size: 3.5 x 2.2cm (1.4 x 0.9inch)
Standard operating conditions:
Ambient Temperature: -20°C to +50°C
Humidity: ≤ 95%RH
Oxygen Content: 21%
Note:
Mainly used for CO, gas detection in family, factory or underground operation.
Package included:
3 x MQ-7 CO gas sensor module
