MQ-5 LPG Gas Module

Sensitive material MQ-5 gas sensor is used to clean the air in the lower conductivity of tin dioxide (SnO₂). When there is the environment in which the combustible gas sensor , conductivity sensor with increasing concentration of combustible gases in air increases . Using a simple circuit to convert the change in conductivity of the gas concentration corresponding to the output signal. MQ-5 gas sensor of high butane , propane, methane sensitivity, methane and propane can be better taken into account. This sensor can detect a variety of combustible gases, especially natural gas , is a low-cost sensor for a variety of applications.

1. Using high-quality dual-panel design, with power indicator and TTL signal output instructions.
2. The switching signal having a DO (TTL) output and analog output AO
3. TTL output valid signal is low. ( Low-level signal when the output light can be directly connected to the microcontroller or relay module )
4. The higher the voltage , the concentration of the analog output voltage is higher.
5. For gas, natural gas has a better detection sensitivity.
6. There are four screw holes for easy positioning.
7. Has a long life and reliable stability.
8. Rapid response and recovery characteristics

Electrical properties:

• Input voltage : DC5V Power consumption (current): 150mA
• DO output: TTL digital 0 and 1 ( 0.1 and 5V)
• AO output: 0.1-0 .3 V ( relative to pollution ), the maximum concentration of a voltage of about 4V
• Special note: After the sensor is powered, needs to warm up around 20 seconds, measured data was stable, heating sensor is a normal phenomenon, because the internal heating wire, if hot is not normal.​

Features:

*Image shown is a representation only.