MQ-4 Methane Coal Co Gas Sensor for Arduino (MQ4)

Περιγραφή

• Size: 32mm X22mm X27mm length X width X height
• The main chip: LM393, ZYMQ-4 gas sensor
• Operating voltage: DC 5 Volt

Features:

• 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.