Description
1.With signal output indicator light.
2.Size: 32mm X22mm X30mm length * width * height;
3.The main chip: LM393, MQ-x gas sensing probe;
4.Working voltage: DC 5V;
5.With signal output indicator light;
6.The dual signal output (analog output and TTL output);
7.The analog output and increased with the increase of concentration, the higher the concentration higher voltage;
8.Has a very high sensitivity to sulfide, benzene vapor, smoke and other harmful gases;
9.With a long service life and reliable stability;
10.Quick response and recovery characteristics;
11.With mounting holes, easy mounting;
12.The probe can be plug design, convenient test
2.Size: 32mm X22mm X30mm length * width * height;
3.The main chip: LM393, MQ-x gas sensing probe;
4.Working voltage: DC 5V;
5.With signal output indicator light;
6.The dual signal output (analog output and TTL output);
7.The analog output and increased with the increase of concentration, the higher the concentration higher voltage;
8.Has a very high sensitivity to sulfide, benzene vapor, smoke and other harmful gases;
9.With a long service life and reliable stability;
10.Quick response and recovery characteristics;
11.With mounting holes, easy mounting;
12.The probe can be plug design, convenient test
MQ-135 Product Overview:
Using a high-quality two-panel design, with a power indicator and TTL signal output instructions.
Switching signal with DO (TTL) output and AO analog output.
TTL The output signal is low. (Low signal when the output light can be directly connected to the microcontroller or relay module)
Analog output voltage with higher concentration of higher voltage
There are four screw holes for easy positioning.
It has a long service life and reliable stability.
Quick Response and Recovery Feature
Input voltage: 5 VDC Current Power consumption (current): 150 mA
Output: TTL digital 0 and 1 (0.1 and 5 V)
AO output: 0.1-0. 3 V (relative to pollution), the maximum voltage concentration of about 4 V
Special note: after turning on the sensor, it is necessary to warm up for about 20 s, the measured data were stable, a thermal sensor is normal, because the internal heating wire, if hot is not normal.
Output: TTL digital 0 and 1 (0.1 and 5 V)
AO output: 0.1-0. 3 V (relative to pollution), the maximum voltage concentration of about 4 V
Special note: after turning on the sensor, it is necessary to warm up for about 20 s, the measured data were stable, a thermal sensor is normal, because the internal heating wire, if hot is not normal.
MQ135 Gas sensor sensitive material used in clean air, low conductivity Tin Oxide (SnO2). If there is a gas pollution sensor in the environment, the conductivity sensor increases with increasing air pollution in the gas concentration. Using a simple circuit can convert the change in the conductivity of the gas concentration corresponding to the output signal.
MQ135 ammonia gas sensor, sulfide, high sensitivity gasoline vapor, smoke and other harmful monitoring will also be ideal. The sensor can detect various harmful gases; these are inexpensive sensors for various applications.
Application:
Used for home and factory gas leak monitoring devices, suitable for liquefied petroleum gas, butane, propane, methane, smoke, etc.
MQ-2 Product Overview:
MQ-2 gas sensor is a sensitive material used in clean air of low conductivity Tin Oxide (SnO2). When there is an environment in which a combustible gas sensor, the conductivity sensor increases with increasing concentration of combustible gases in the air. Using a simple circuit to convert changes in the conductivity of a gas concentration corresponding to an output signal. MQ-2 gas sensor, high on gas, propane, hydrogen sensitivity detection of natural gas and other flammable vapors are also very good. this sensor can detect various flammable gases, these are inexpensive sensors for various applications.
Gas can be used in homes and factories, a leak monitoring device is suitable for detecting gas, butane, propane, methane, smoke, etc.
MQ-3 Product Overview:
Sensitive material The MQ-3 gas sensor is used in clean, low conductivity Tin Oxide (SnO2). If alcohol vapors are detected in the environmental sensor, the conductivity sensor increases with increasing gas concentration in the air. Using a simple circuit can convert the change in the conductivity of the gas concentration corresponding to the output signal. High MQ-3 sensitivity of the gas sensor to alcohol Yu, can withstand interference of gasoline, smoke, water vapor. The sensor can detect various concentrations of alcohol in the atmosphere, it is an inexpensive sensor suitable for various applications
Application:
To detect on-site drivers of vehicles and other non-drinking workers, as well as to detect other places of ethanol vapor, the detection range of alcohol: detection range 10 ~ 1000ppm.
MQ-4 Product Overview:
Sensitive material MQ-4 gas sensors used in clean air, low conductivity Tin Oxide (SnO2). When there is an environment in which a combustible gas sensor, the conductivity sensor increases with increasing concentration of combustible gases in the air. Using a simple circuit can convert the change in the conductivity of the gas concentration corresponding to the output signal. The MQ-4 is a high sensitivity methane gas sensor, propane, butane and has good sensitivity. The sensor can detect various flammable gases, especially natural gas, it is an inexpensive sensor suitable for various applications.
Application:
Gas can be used in homes and factories, a leak monitoring device, suitable for detecting liquefied petroleum gas, butane, propane, methane, smoke, etc.
