Modulo sensor de gas metano MQ-4

Sensitive material of MQ-4 gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exist, The sensors conductivity is more higher along with the gas concentration rising. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration.

MQ-4 gas sensor has high sensitity to Natural gas, Methane, and could be used to detect both Methane and Propane. The sensor could be used to detect different combustible gas especially Methane, it is with low cost and suitable for different application.
1. Size: 32mm X22mm X27mm length X width X height
2. The main chip: LM393, ZYMQ-4 gas sensor
3. Operating voltage: DC 5 Volt

 

Features:
1. Indication of the signal output.
2. Dual signal output (analog output, and TTL level output)
3. TTL output signal is low. (When low output signal light, and can be connected directly to the microcontroller)
4. 0 ~ 5V analog output voltage, the higher the concentration, the higher the voltage.
5. Of methane gas, the natural gas has better sensitivity.
6.High sensitivity to Combustible gas in wide range

 

Application :

• Suitable for home or factory methane gas, natural gas, and other monitoring devices
• Domestic gas leakage detector
• Industrial Combustible gas detector
• Portable gas detector
• Gas leak alarm, Gas detector
• They are used in gas leakage detecting equipments in family and industry, are suitable for detecting of Natural gas Methane?Coal gas CO etc gas and cooking fumes and cigarette smoke.

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