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YJJ MQ-4 MQ-4B Natural Gas Detection Sensor for Accurate Combustible Gas Sensing Standard Test Circuit Vc 5.0V±0.1V

    Buy cheap YJJ MQ-4 MQ-4B Natural Gas Detection Sensor for Accurate Combustible Gas Sensing Standard Test Circuit Vc 5.0V±0.1V from wholesalers
     
    Buy cheap YJJ MQ-4 MQ-4B Natural Gas Detection Sensor for Accurate Combustible Gas Sensing Standard Test Circuit Vc 5.0V±0.1V from wholesalers
    • Buy cheap YJJ MQ-4 MQ-4B Natural Gas Detection Sensor for Accurate Combustible Gas Sensing Standard Test Circuit Vc 5.0V±0.1V from wholesalers
    • Buy cheap YJJ MQ-4 MQ-4B Natural Gas Detection Sensor for Accurate Combustible Gas Sensing Standard Test Circuit Vc 5.0V±0.1V from wholesalers
    • Buy cheap YJJ MQ-4 MQ-4B Natural Gas Detection Sensor for Accurate Combustible Gas Sensing Standard Test Circuit Vc 5.0V±0.1V from wholesalers
    • Buy cheap YJJ MQ-4 MQ-4B Natural Gas Detection Sensor for Accurate Combustible Gas Sensing Standard Test Circuit Vc 5.0V±0.1V from wholesalers
    • Buy cheap YJJ MQ-4 MQ-4B Natural Gas Detection Sensor for Accurate Combustible Gas Sensing Standard Test Circuit Vc 5.0V±0.1V from wholesalers
    • Buy cheap YJJ MQ-4 MQ-4B Natural Gas Detection Sensor for Accurate Combustible Gas Sensing Standard Test Circuit Vc 5.0V±0.1V from wholesalers

    YJJ MQ-4 MQ-4B Natural Gas Detection Sensor for Accurate Combustible Gas Sensing Standard Test Circuit Vc 5.0V±0.1V

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    Brand Name : MQ
    Model Number : MQ-4 MQ-4B
    Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram
    Supply Ability : 500
    Delivery Time : 5-8 days
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    YJJ MQ-4 MQ-4B Natural Gas Detection Sensor for Accurate Combustible Gas Sensing Standard Test Circuit Vc 5.0V±0.1V

    Product Description:

    YJJ MQ-4 MQ-4B Natural Gas Detection Sensor Combustible Gas Sensing Sensor


    Features:

    MQ-4 natural gas detection sensor

    The gas-sensitive material used in the MQ-4 natural gas sensor (gas sensor) is tin dioxide (SnO2), which has a relatively low electrical conductivity in clean air. When there are flammable gases in the environment where the natural gas sensor is located, the electrical conductivity of the natural gas sensor increases with the increase of the concentration of flammable gases in the air. A simple circuit can be used to convert the change in electrical conductivity into an output signal corresponding to the concentration of the gas. The MQ-4 natural gas sensor has high sensitivity to methane and strong anti-interference ability against alcohol and some other interfering gases.
    Main application
    Household gas leakage alarm, industrial combustible gas alarm, portable gas detector
    Product model MQ-4
    Product type: Semiconductor gas sensor
    Standard encapsulation bakelite and metal covers
    Detect the gas methane
    Detection concentration: 300-10,000 PPM (methane)
    Standard circuit condition loop voltage Vc 5.0V±0.1V DC
    Heating voltage VH: 5.0V±0.1V AC or DC
    The load resistance RL is adjustable
    The characteristics of the gas-sensitive element under standard test conditions: heating resistance RH 28Ω±3Ω (at room temperature)
    The heating power consumption PH is ≤1W
    Sensitivity
    S Rs(in air)/Rs(in 5000 PPM methane)≥5
    Output voltage Vs 2.5V - 4.0V (in 5000ppm CH4)
    Concentration slope α ≤0.6(R5000ppm/R1000ppm CH4)
    The standard test conditions are temperature and humidity: 20℃±2℃. 55%±5%RH
    Standard test circuit Vc:5.0V±0.1V The VH: 5.0 V + / - 0.1 V
    The preheating time should be no less than 48 hours
    Oxygen content: 21%(not less than 18%). The oxygen concentration will affect the initial value, sensitivity and repeatability of the sensor. Please consult for use when using in low oxygen concentration.
    Lifespan: 10 years


    Specifications:

    Detection gas concentration range300-10,000 PPM (methane)
    Standard circuit condition loop voltageVc 5.0V±0.1V DC
    Operating temperature0℃ to 40℃
    Operating temperature range-100°C to +250°C

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