Size: 32mm X 22mm X 27mm (length X width X height)

Main processor: LM393, ZYMQ-4 gas sensor

Operating voltage: DC 5 Volt

Features:

• Signal output indications.
• Dual signal output (analog output, and TTL level output)
• The TTL signal output is low. (When the signal output is low, it is directly connected to the microcontroller)
• Analog output voltage 0 ~ 5V, higher concentration provides higher voltage.
• It has better sensitivity for methane and natural gas.