- Sensitive material MQ-4 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-4 gas sensor of high sensitivity for methane , propane , butane and has a good sensitivity. This sensor can detect a variety of combustible gases, especially natural gas , is a low-cost sensor for a variety of applications .
- Suitable for home or factory methane gas , natural gas and other monitoring devices to test natural gas, methane 300 to 10000ppm;
Unit Type: piece Package Weight: 0.01kg (0.02lb.) Package Size: 5cm x 5cm x 5cm (1.97in x 1.97in x 1.97in)After the sensor is powered , needs to warm up around 20S, measured data was stable , heat sensor is a normal phenomenon , because the internal heating wire
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