MQ-4 sensor Introduction:
MQ-sensitive material 4 gas sensors used in clean air, low conductivity tin oxide (SnO2). When there is an environment in which the combustible gas sensor, conductivity sensor with increasing concentration of combustible gases in air increases. Use simple circuit can convert the change in conductivity of the gas concentration corresponding to the output signal. MQ-4 Methane gas sensor of high sensitivity, propane, butane and has a good sensitivity. The sensor can detect a variety of combustible gases, especially natural gas, it is a low-cost sensor suitable for a variety of applications.
Module Applications:
For home or factory methane gas, natural gas and other monitoring devices, can be tested natural gas, methane 300 to 10000ppm;
Module Features:
1, using high-quality dual-panel design, with power indicator and a TTL signal output instructions;
2, with DO switching signal ( TTL) output AO analog signal output;
3, the TTL output valid signal is low. (When the output low signal light can be directly connected microcontroller or relay modules)
4, the higher the higher the voltage, the voltage concentration analog output.
5, methane, natural gas has a good detection sensitivity.
6, there are four screw holes for easy positioning;
7, Product Dimensions: 32 (L) * 20 (the W) * 22 (H)
. 8, has a long life and reliable stability
9, rapid response recovery characteristics
Electrical performance: Input voltage: DC5V power (current): 150mA the DO output: TTL digital 0 and 1 (0.1 and 5V)
AO Output: 0.1-0.3V (relatively clean), the highest concentration of about 4V voltage Special note: Sensors Power, the need to warm about 20S, measured dat
MQ-4 sensor Introduction:
MQ-sensitive material 4 gas sensors used in clean air, low conductivity tin oxide (SnO2). When there is an environment in which the combustible gas sensor, conductivity sensor with increasing concentration of combustible gases in air increases. Use simple circuit can convert the change in conductivity of the gas concentration corresponding to the output signal. MQ-4 Methane gas sensor of high sensitivity, propane, butane and has a good sensitivity. The sensor can detect a variety of combustible gases, especially natural gas, it is a low-cost sensor suitable for a variety of applications.
Module Applications:
For home or factory methane gas, natural gas and other monitoring devices, can be tested natural gas, methane 300 to 10000ppm;
Module Features:
1, using high-quality dual-panel design, with power indicator and a TTL signal output instructions;
2, with DO switching signal ( TTL) output AO analog signal output;
3, the TTL output valid signal is low. (When the output low signal light can be directly connected microcontroller or relay modules)
4, the higher the higher the voltage, the voltage concentration analog output.
5, methane, natural gas has a good detection sensitivity.
6, there are four screw holes for easy positioning;
7, Product Dimensions: 32 (L) * 20 (the W) * 22 (H)
. 8, has a long life and reliable stability
9, rapid response recovery characteristics
Electrical performance: Input voltage: DC5V power (current): 150mA the DO output: TTL digital 0 and 1 (0.1 and 5V)
AO Output: 0.1-0.3V (relatively clean), the highest concentration of about 4V voltage Special note: Sensors Power, the need to warm about 20S, measured dat
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