MQ-8 Hydrogen Gas Sensor Module

MQ-8 is the Hydrogen gas sensor module. It is used to detects hydrogen gas presence in air. Whenever H₂ gas comes into contact with the sensing element, the resistivity of the element changes. The change is then measured to get the concentration of the gases present. Using a simple circuit to convert the change in conductivity of the gas concentration corresponding to the output signal. MQ-8 hydrogen gas sensor of high sensitivity, the monitoring of the other hydrogen-containing gas is also very satisfactory. This sensor can detect a wide range of hydrogen gas, city gas, in particular, is a low-cost sensor for a variety of applications. Suitable for monitoring hydrogen leaks in industrial or domestic settings. cannot interfere with gases like carbon monoxide, soot, or ethanol vapors. 

Features:

• A hydrogen gas detection with good sensitivity
• Using high-quality dual-panel design, with power indicator and TTL signal output instructions.
• The switching signal having a DO (TTL) output and analog output AO.
• TTL output valid signal is low. ( Low-level signal when the output light can directly connect to the microcontroller or relay module )
• Compact in size and reliable
• The analogue output voltage has a larger concentration at higher voltages.
• There are four screw holes for easy positioning.
• Qualities of rapid response and recovery

Specifications: