MQ-7 CO Gas Sensor Module

DescriptionMQ-7 CO Gas Sensor ModuleSpecification: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:1 x MQ-7 CO gas sensor module