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Ethanol Alcohol Gas Sensor Module for Arduino MQ-3

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Details

Item Number
MQ3
Item Condition
New
Price
£2.50 (inc VAT £3.00)

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  • Carbon Monoxide gas sensor module for Arduino MQ-7

    Carbon Monoxide gas sensor module for Arduino MQ-7

    Carbon Monoxide sensor module for Arduino and other microcontroller projects

     
    A Carbon Monoxide sensor detects CO in normal air conditions.
    The resistance of the sensor changes with CO levels giving a varying voltage on the analogue pin. A comparator supplies a digital output when the CO level reaches a certain level, set with the built in potentiometer.
     
    Please note, this sensor needs to run for 24-48 hours before first time use
     
    Voltage : 5VDC
    Current : 100mA
    Sensitivity : 10 to 10000ppm
    Size 32x21mm
    MQ7
    £3.50
  • Methane gas sensor module for Arduino MQ-4

    Methane gas sensor module for Arduino MQ-4

    Methane gas sensor module for Arduino and other microcontroller projects

     
    This module has a sensitive methane sensor that will detect levels of methane in the air. The sensor outputs a varying voltage on the analogue pin depending on the level of methane and it has a comparator to give you a digital out at when the methane level reaches a certain level, this can be set with the built in potentiometer.
     
    Please note, this sensor needs to warm up for 20 seconds before it will give a stable reading.
     
    Voltage : 5VDC
    Current : 150mA
    Sensitivity : 300 to 10000ppm
    Size 32x21mm
    MQ4
    £2.50
  • MQ2 Combustible Gas & Smoke Sensor

    MQ2 Combustible Gas & Smoke Sensor

    Combustible gas and smoke sensor module for Arduino and other microcontroller projects

     
    This module has a sensitive gas sensor that can measure smoke and various combustible gases. It can measure compunds such as LPG, Propane, Methane and smoke. The sensor outputs a varying voltage on the analogue pin depending on the level of gases present and it has a comparator to give you a digital output when the level of combustible gases reaches a certain level. This can be set with the built-in potentiometer.
     
    Please note, this sensor needs to warm up for a couple of minutes before it will give a stable reading.
     
    Voltage : 5VDC
    Current : 150mA
    Sensitivity : 300 to 10000ppm
    Size 32x21mm
    MQ2
    £3.50

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Alcahol Ethanol sensor module for Arduino and other microcontroller projects

 
A sensitive ethanol sensor will detect levels of alcahol in the air. The level of alcohol varies the output voltage. A comparator gives a digital output. When the ethanol level reaches a certain level, this can be set with the built in potentiometer.
 
Please note: this sensor needs to run for 24-48 hours before first time use
Voltage : 5VDC
Current : 300mA
Sensitivity : 0.4mg/L alcohol
Size 32x21mm

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