As a natural gas sensor, the MQ4 Natural Gas Sensor is a fast and reliable sensor with a high sensitivity to natural gas and methane, also good sensitivity to propane and butane. This natural gas sensor has a long life and low cost and is widely used for gas leak detection. At the same time, two LED lights are used in the project to display ...
MQ4 Methane Gas Sensor detects the concentration of methane gas in the air and ouputs its reading as an analog voltage. The concentration sensing range of 300 ppm to 10,000 ppm is suitable for leak detection. For example, the sensor could detect if someone left a gas stove on but not lit.
MQ4 Methane Gas Sensor Module . Sensitive material MQ4 gas sensor is used to purify the air in the lower conductivity of tin dioxide (SnO2). when there are conditions in which the combustible gas sensor, the conductivity sensor with increasing concentration of combustible gases in the air increases. using a simple circuit to convert the change in the conductivity of the gas concentration ...
Description:The MQ4 Methane Gas Detection Sensor Module detects Methane gas in the surrounding air. The concentration of methane is output as an analogue voltage reading. This sensor can detect concentrations between 300 – 10000ppm and is suitable for portable gas detectors and home safety automation modul
MQ4 gas sensor has high sensitivity to methane, also has antiinterference to alcohol and other gases. It is widely used in domestic gas leakage alarm, industrial flammable gas alarm and portable gas detector. Tips:For more parameter information, please refer to the latest manual provided by salesman. 26Ω±3Ω (room tem.)
20150509· VRL = map (sensorValue, 0, 1023, 0, 5000); Once you have the voltage, you can compute the resistance of the sensor using the formula. Rs= (Vc/VRL1)×RL. with Vc the circuit voltage (5V), VRL the voltage over the load resistor, and RL the resistance of the load resistor in Ohms. The tricky part is to convert this to a concentration in ppm CH4.
This is a simple to use MQ4 High Sensitivity Gas Methane (CNG) Detector Sensor Module which can sense the presence of Compressed Natural Gas(CNG), methane(CH4), etc in the air. The module uses our MQ4 sensor. It simplifies the interface to the odd pin spacing of the sensor and provides the interface through standard 4 x […]
This is a very easy to use low cost semiconductor Gas sensor Module with analog and digital output. This module uses MQ4 Methane gas sensor as a gas sensing element. It requires no external components just plug in Vcc ground pins and you are ready to Digital output the threshold value can be easily set by an onboard potentiometer.
20200911· The MQ4 is one of many gas sensors ready to be interfaced with microcontrollers. Just like the rest of the MQ sensors, the MQ4 is most sensitive to a particular gas. This time, it’s methane, although the sensor can still detect other flammable gases like butane and propane.
MQ4 Methane Gas Sensor detects the concentration of methane gas in the air and ouputs its reading as an analog voltage. The concentration sensing range of 300 ppm to 10,000 ppm is suitable for leak detection. For example, the sensor could detect if someone left a gas stove on but not lit. The sensor