Product Descrption:
Main Chip: LM393, ZYMQ-5 gas sensor
Operating Voltage: DC 5V
Input Voltage: DC5V
Power: 150mA
DO Output: 0.1V/5V
AO Output: 0.1-0.3
 
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
Liquefied petroleum gas, natural gas, city gas, better sensitivity
Has a long life and reliable stability
Fast response and recovery characteristics
 
Resources:
1. MQ-5 Combustible Gas Sensor Interfacing with Arduino
2. Interfacing MQ-5 Smoke Gas Sensor Module with Arduino