MQ-5 methane gas sensor

The gas sensitive material used in the MQ-5 gas sensor is tin dioxide (SnO2), which has a lower conductivity in clean air. When there is flammable gas in the environment where the sensor is located, the conductivity of the sensor increases as the concentration of flammable gas in the air increases. A simple circuit can be used to convert the conductivity change into an output signal corresponding to the gas concentration. The MQ-5 gas sensor has high sensitivity to butane, propane and methane and can better deal with methane and propane. This sensor can detect a variety of combustible gases, especially natural gas, and is a low-cost sensor suitable for a variety of applications.

Suitable for home or industrial monitoring devices for liquefied gas, natural gas and gas. Excellent resistance to ethanol and smoke.

Module features:

1, using high-quality dual-panel design, with power instructions and TTL signal output instructions;

2, with a DO switch signal (TTL) output and AO analog signal output;

3, TTL output valid signal is low. (When the output is low, the signal light is on, it can be directly connected to the MCU or relay module)

4, analog output voltage, concentration higher voltage.

5, gas, natural gas detection has good sensitivity.

6, there are four screw holes for easy positioning;

Product dimensions: 32(L)* 20(W)* 22(H)

8, has a long service life and reliable stability

9, quick response recovery features

Electrical performance:

Input voltage: DC5V power consumption (current): 150mA

Output: TTL digital quantities 0 and 1 (0.1 and 5V)