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The sensitive material of the MQ-131 gas sensor is O3 SnO2, which with lower conductivity in clean air. When Ozone gas exists. The sensor’s conductivity is higher along with the gas concentration rising. Please use a simple electro-circuit and convert the change of conductivity to the corresponding output signal of gas concentration. MQ-131 gas sensor has a high sensitivity to Ozone, also sensitive to O3 CL2, NO2, etc.
The gas sensor (MQ2) module is useful for gas leakage detection (home and industry). It is suitable for detecting H2, LPG, CH4, CO, Alcohol, Smoke, or Propane. Due to its high sensitivity and fast response time, measurements can be taken as soon as possible. The sensitivity of the sensor can be adjusted by a potentiometer.
MQ-3 Alcohol Detector Module which can sense the presence of Alcohol in the air. It provides an analog output corresponding to the concentration of the gas in the air and an easy-to-use digital output. The onboard potentiometer can be used to set the maximum gas concentration beyond which the digital output gets triggered. Just power the module with 5V set the threshold and you can start getting the gas concentration of the air around the sensor. An onboard LED signals the presence of any gas. Perfect sensing alcohol concentration on your breath just like a common breathalyser.
The MQ-4 High Sensitivity Gas Methane (CNG) Detector Gas Sensor Module is a quite good solution. This is a simple-to-use MQ-4 High Sensitivity Gas Methane (CNG) Detector Sensor Module that can sense the presence of Compressed Natural Gas (CNG), methane (CH4), etc in the air. The module uses our MQ-4 sensor. It simplifies the interface to the odd pin spacing of the sensor. It provides an analog output corresponding to the concentration of the gases in the air and an easy-to-use digital output. The onboard potentiometer can be used to set the maximum gas concentration beyond which the digital output gets triggered.
MQ5 is a sensitive gas sensor that can detect or sense liquefied gas, propane, butane, natural, and other combustible gases in the environment. And, hence used in gas leakage detectors, and other industrial gas detectors, or monitoring devices. The output voltage of this MQ5 Gas sensor increases when the concentration of gases or a gas increases. Due to its high sensitivity and fast response time, measurements can be taken as soon as possible. The sensitivity of the sensor can be adjusted by using the potentiometer.
The MQ6 Gas Sensor is a type of gas detection device that is designed to detect specific gases in the air, particularly Liquefied Petroleum Gas (LPG), Isobutane, and Propane. These gases are commonly used in household appliances like stoves, heaters, and gas-powered vehicles. The MQ-6 sensor module is part of the MQ series of gas sensors produced by the company Winsen, and it operates based on the principle of chemical resistance change.
The sensitive material of the MQ-7 gas sensor is SnO2, which with lower conductivity in clean air. It makes detection by method of cycle high and low temperature and detects CO when low temperature (heated by 1.5V). The sensor’s conductivity is higher along with the gas concentration rising. When high temperature (heated by 5.0V), it cleans the other gases adsorbed under low temperature. Please use a simple electro-circuit and convert the change of conductivity to the corresponding output signal of gas concentration.MQ-7 gas sensor has high sensitivity to Carbon Monoxide. The sensor could be used to detect different gases containing CO, it is low cost and suitable for different application
A sensitive material MQ-8 Hydrogen Gas Sensor Module H2 Alarm Detection used in clean air low conductivity tin oxide (SnO2). When there is the environment in which the combustible gas sensor, the conductivity sensor with increasing concentration of combustible gases in the air increases.
This MQ-9 Carbon Monoxide, Methane, and LPG Gas Sensor Module can be used to sense Carbon Monoxide and Methane Gas. The sensitive material of the MQ9 gas sensor is SnO2, which with lower conductivity in clean air. It makes detection by the method of cycle high and low temperature and detects CO when the low temperature (heated by 1.5V). The sensor’s conductivity is higher along with the gas concentration rising. When a high temperature (heated by 5.0V), it detects Methane, Propane, etc. combustible gas and cleans the other gases adsorbed under low temperature.
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