Mq-8 Hydrogen Gas Detection Sensor Module

MQ-8 Hydrogen Gas Detection Sensor Module

Mq 8 gas sensor, high against hydrogen; It is a sensor card with low sensitivity to alcohol vapor, LPG and smoke emitted from cooked food. It works with operating voltage 5V.

Hydrogen gas detection (H2) is in the range of 10-10000 ppm. DO switch signal (TTL) output and AO analog signal output’ truck.

TTL output valid signal is low.  (When the output low signal light can be directly connected to the microcontroller or relay module)

Analog output voltage, the higher the concentration, the higher the voltage

Input voltage: DC5V power (current): 150mA

DO output: TTL digital 0 and 1 (0.1 and 5V)

AO output: 0.1-0.3V (relatively clean), highest voltage concentration around 4V