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Winsen MQ-4- Methane Sensor

94.00

The sensitive material of the MQ-4 gas sensor is SnO2, which with lower conductivity in clean air. When the target flammable gas exists, the sensor’s conductivity gets higher along with the gas concentration rising. Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit.

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Winsen MQ-4 Methane Sensor is an original and brand new methane gas sensor. With a long lifespan and low price, for detecting Methane gas leakage.
MQ-4 gas sensor has a high sensitivity to methane, also has anti-interference to alcohol and other gases. It is low cost and suitable for different applications of detecting kinds of methane concentration gases.
Features
Responsive to Methane gases
Compatible with 5V
Cost-efficient
Specification

Model Type MQ-4
Sensor Type Semiconductor
Standard Encapsulation Bakelite, Metal Cap
Target Gas Methane
Detecting Range 300~10000ppm(CH4)
Output Voltage 2.5V~4.0V (in 5000ppm CH4)
Load Resistance Adjustable
Heater Voltage 5.0V AC or DC
Sensitivity Rs(in air)/Rs(in 5000ppmCH4)>5
Tem. Humidity 20C, 55%+/-5%RH
Length (mm) 24
Diameter (mm) 19
Weight (gm) 8

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