MQ-3 Ethanol Sensor Module

This module is made using Alcohol Gas Sensor MQ3. It is a low-cost semiconductor sensor that can detect the presence of alcohol gases at concentrations from 0.05 mg/L to 10 mg/L. The sensitive material used for this sensor is SnO2, whose conductivity is lower in clean air.

$7.25

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MQ-3 Ethanol Sensor Module
This item: MQ-3 Ethanol Sensor Module

1 in stock

$7.25
$7.25
$6.95
MQ-9 Carbon Monoxide & Flammable Gas Sensor Module
$7.95
Qty Discount
2 - 4 5%
5 - 9 6.5%
10 + 8%
SKU: OKY3326
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Description
Additional information
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Specifications:

MQ-3 Ethanol Sensor Module

  • Working voltage: 5V DC
  • Chip: LM393, ZYMQ-3 Ethanol  Gas sensors
  • Interface: Analogue
  • Pin definition: 1 – Output, 2 – GND, 3 – VCC
  • Dual signal output: (Analog output and TTL level output)
  • Gas Detection:  alcohol, Ethanol,
  • Fast response and high sensitivity
  • Used in motor vehicles and other no drunken drivers homework personnel on-site testing, also used in other places of ethanol vapour detection.

MQ-3 Ethanol Sensor Module is for detecting Alcohol, Ethanol, smoke Due to its high sensitivity and fast response time, measurements can be taken as soon as possible. The sensitivity of the sensor can be adjusted by using the potentiometer.

Gas Sensor Comparison
Sensor Detects Heater Voltage
MQ-2 Methane, Butane, LPG, smoke 5V
MQ-3 Alcohol, Ethanol, smoke 5V
MQ-4 Methane, CNG Gas 5V
MQ-5 Natural gas, LPG 5V
MQ-6 LPG, butane gas 5V
MQ-7 Carbon Monoxide Alternating 5V and 1.4V
MQ-8 Hydrogen Gas 5V
MQ-9 Carbon Monoxide, flammable gasses. Alternating 5V and 1.4V
MQ131 Ozone 6V
MQ135 Air Quality (Benzene, Alcohol, smoke) 5V
MQ136 Hydrogen Sulfide gas 5V
MQ137 Ammonia 5V
MQ138 Benzene, Toluene, Alcohol, Acetone, Propane, Formaldehyde gas, Hydrogen 5V
MQ214 Methane, Natural gas 6V
MQ216 Natural gas, Coal gas 5V
MQ303A Alcohol, Ethanol, smoke 0.9V
MQ306A LPG, butane gas 0.9V
MQ307A Carbon Monoxide Alternating 0.2V and 0.9V.
MQ309A Carbon Monoxide, flammable gasses Alternating 0.2V and 0.9V
MG811 Carbon Dioxide (CO2) 6V
AQ-104 Air quality

Development  Resources: demo codes, schematics, datasheets, etc

MQ-135 Product Overview:

Can be used for home and factory gas leakage monitoring devices, suitable for liquefied petroleum gas, butane, propane, methane, smoke, ammonia, sulfide, benzene, etc.

MQ-2 Product Overview:

Can be used in homes and factories leakage monitoring device suitable for the detection of natural gas, hydrogen, butane, propane, methane, smoke, etc.

MQ-3 Product Overview: MQ-3 Ethanol Sensor Module

Gas sensor sensitivity to alcohol can resist the interference of gasoline, smoke, water vapour. The sensor can detect a variety of alcohol concentration in the atmosphere.

Can be used for on-site detection of motor vehicle drivers (breathalyzer), but also for detecting other places of ethanol vapour, alcohol detection range: detection range 10 ~ 1000ppm

MQ-4 Product Overview:

MQ-4 Methane gas sensor of high sensitivity, propane, butane and has good sensitivity. The sensor can detect a variety of combustible gases, especially natural gas.

Can be used in homes and factories leakage monitoring device, suitable for the detection of liquefied petroleum gas, butane, propane, methane, smoke and the like.

MQ-5 Product Overview:   

Main Chip: LM393, ZYMQ-5 gas sensor for liquefied petroleum gas (LPG), natural gas, city gas, best sensitivity.

Can be used for LPG detection, natural gas, coal gas monitoring device suitable for home or industrial. Excellent resistance to alcohol, smoke interference ability.

MQ-6 Product Overview:

MQ-6 gas sensor for propane, butane, LPG high sensitivity, natural gas and has good sensitivity. The sensor can detect a variety of combustible gas, suitable for a variety of applications.

Suitable for home or industrial on LPG (liquefied petroleum gas), butane, propane, LNG (liquefied natural gas) detection devices. Excellent resistance to ethanol vapour, mist interference.

MQ-7 Product Overview:

High-low temperature cycling detection mode (1.5V heating) carbon monoxide detector, conductivity sensor with the increasing concentration of carbon monoxide gas in the air increases, high-temperature (5.0V heating) cleaning cryo-adsorption stray gases. Using a simple circuit to change the conductivity, the concentration of the gas is converted to the corresponding output signal. MQ-7 gas sensor has a high sensitivity for carbon monoxide, this sensor can detect a variety of gases containing carbon monoxide, is a low-cost sensor for a variety of applications.

Can be used for home and factory gas leakage monitoring devices, suitable for liquefied petroleum gas, butane, propane, methane, smoke, etc.

MQ-8 Product Overview:

MQ-8 hydrogen gas sensor of high sensitivity monitoring of other hydrogen-containing gases.

Suitable for home or industrial hydrogen leak monitoring devices. Can not interfere with ethanol vapour, soot, carbon monoxide and other gases.

MQ-9 Product Overview:       

High-low temperature cycling detection mode (1.5V heating) detecting carbon monoxide sensor’s conductivity increases with the air of carbon monoxide gas concentration increases, spurious adsorption at high temperature (5.0V heat) detection of combustible gases methane, propane, and cryogenic cleaning gas.  MQ-9 gas sensor for high carbon monoxide, methane, liquefied petroleum gas sensitivity, this sensor can detect a variety of carbon monoxide and combustible gas, is a low-cost sensor suitable for a variety of applications.

Reference for Arduino and reference to all matters.

Ardunio from Wikipedia

Notes:

1. There may be slight size deviations due to manual measurement, different measuring methods and tools.
2. The picture may not reflect the actual colour of the item because of different photographing light, angle and display monitor.

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See Support Items

Weight 0.008 kg
Dimensions 3.2 × 2.2 × 2.7 cm


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OKY3326 MQ-3 Ethanol Sensor Module - MQ-3 Data Sheet Document Download

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