Features：

• Size: 32X20X22mm/1.25*0.78*0.86”
• The main chip: MQ-4 gas sensing probe
• Operating voltage: DC 5V
• Power (current) : 150mA
• DO Output: 0.1V/5V
• AO Output: 0.1-0.3V
• Indication of the signal output
• Dual signal output (analog output, and TTL level output)
• TTL output signal is low. (When low output signal light, and can be connected directly to the microcontroller)
• 0 ~ 5V analog output voltage, the higher the concentration, the higher the voltage.
• Of methane gas, the natural gas has better sensitivity
• Applications:
• Suitable for home or factory methane gas, natural gas, and other monitoring devices

Package Included:

MQ-4 Methane Gas Sensor Natural Coal Co Methane Detector Module For Arduino