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Winsen MQ-2- Smoke Sensor

94.00

Winsen MQ-2 Smoke Sensor is an original and brand new smoke and propane gas sensor. With a long lifespan and low price, for domestic gas leakage and flammable gas alarm use. The sensitive material of the MQ-2 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.

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Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit. MQ-2 gas sensor has a high sensitivity to propane and smoke, also can detect natural gas and other flammable steam well. It is at low cost and suitable for different applications of detecting kinds of flammable gases.
Applications
It is widely used in domestic gas leakage alarms, industrial flammable gas alarms, and portable gas detectors.
Features
Responsive to a wide range of gases
Compatible with 5V
Cost-efficient
Specification

Model Type MQ-2
Sensor Type Semiconductor
Standard Encapsulation Bakelite, Metal cap
Target Gas Flammable gas, smoke gas sensor
Detecting Range 300~10000ppm(flammable gas)
Loop Voltage (Vc) ≤24V DC
Heater Voltage (VH) 5.0V±0.1V AC or DC
Tem. Humidity 20+/-2C, 55%+/-5%RH
Output Voltage 2.5V~4.0V(in 2000ppmC3H8)
Load Resistance Adjustable
Heater Resistance 29Ω±3Ω(room tem.)
Sensitivity Ro(in air)/Rs(2000ppm C3H8)>5
Length (mm) 24
Diameter (mm) 19
Weight (gm) 8

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