Features: 1A miniature gas sensor module developed based on MEMS methane gas sensor can be used to detect the content of CH4 gas in the air and send an alarm signal. 2High sensitivity, high resolution, low power consumption, provide UART, PWM waveform and other output methods. 3Can resist the interference of common organic gases, high stability, excellent anti?interference ability (anti?interference of 2000ppm ethanol). 4It has temperature compensation and excellent linear output, which is stable and reliable to use. 5With 500-10000ppm measuring range and 20000ppm maximum allowable concentration. Condition: 100% Brand New Item Type: Methane Gas Sensor Module Material: Plastic Color: As picture shown Model: MMD1008 Detection Gas: Methane Interference Gas: Carbon Monoxide and Other Gases Measuring Range: 500?10000ppm Maximum Allowable Concentration: 20000ppm Output Data: UART Output Working Voltage: 3.3V (No Voltage Reverse Connection Protection) Working Current: 30mA Alarm Point Setting Range: 3000?10000ppm Warm?Up Time: 3?5min Alarm Mode: Sound And Light Alarm, PMW Signal Output Response Time: 30 Seconds Recovery Time: 60 Seconds Resolution: 500ppm Working Temperature: ?10?55 Working Humidity: 15%RH?90%RH (No Condensation) Storage Temperature: ?10?55 Dimension (LXWXH): Approx. 20 25 5mm/0.8 x 1 x 0.2in Service Life: 3 Years Package Included: 1 x Methane Gas Sensor Module&nbsp