Natural methane gas sensor unit MQ-4

MQ-4 gas sensor for natural gases and methane and flammable gases Additional information Specifications (Natural Gas Sensor | MQ-4): measures the concentration of the following gases: natural gas and methane range of measurement: 300 – 10000 ppm response time: less than 10 seconds recovery time: less than 30 seconds heater resistance: 31 ohms heater current: 180 milliamps heater voltage: 5 volts operating temperature: -20 to 55 degrees Celsius operating humidity: 95% RH