MQ-3 Alcohol Ethanol Sensor Module

৳ 145

Specifications of MQ-3 Gas Sensor

Power requirements: 5 VDC @ ~165 mA (heater on) / ~60 mA (heater off)
Current Consumption: 150mA
DO output: TTL digital 0 and 1 ( 0.1 and 5V)
AO output: 0.1- 0.3 V (relative to pollution), the maximum concentration of a voltage of about 4V
Detecting Concentration: 0.05-10mg/L Alcohol
Interface: 1 TTL compatible input (HSW), 1 TTL compatible output (ALR)
Heater consumption: less than 750mW
Operating temperature: 14 to 122 °F (-10 to 50°C)
Load resistance: 200kO
Sensitivity S: Rs(in air)/Rs(0.4mg/L Alcohol)=5
Sensing Resistance Rs: 2K?-20K?(in 0.4mg/l alcohol)
Dimensions: 32 x 22 x 16 mm

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MQ-3 Alcohol Ethanol Sensor Module

The MQ-3 Alcohol Ethanol Sensor module is a type of gas sensor that is specifically designed to detect the presence of alcohol, particularly ethanol, in the air. The sensor uses a metal oxide semiconductor (MOS) to detect the concentration of ethanol in the air and output an electrical signal that corresponds to the level of ethanol present. The module typically includes the MQ-3 sensor, a circuit board with necessary components such as an amplifier and comparator circuit, and an output pin that can be connected to a microcontroller or other device for data processing.

  • Model: MQ-3 Alcohol Ethanol Sensor Module
  • Good sensitivity to alcohol gas
  • Sensor Type – Semiconductor
  • Compatible with most of the microcontrollers
  • Low-power standby mode
  • Requires heater voltage
  • Fast response and High sensitivity
  • Long life and low cost

The MQ-3 Alcohol Ethanol Sensor can be used for a wide range of applications, such as:

  1. Breath alcohol testers: The MQ-3 sensor can be used to detect the presence of alcohol on a person’s breath, typically used to measure blood-alcohol content.
  2. Air quality monitoring: The sensor can be used to detect the presence of alcohol in the air in various environments, such as in a bar or a brewery.
  3. Alcohol detection in industrial processes: The sensor can be used to detect the presence of alcohol in industrial processes, such as in the production of alcoholic beverages.
  4. Alcohol detection in automotive and transportation: The sensor can be used to detect the presence of alcohol in a vehicle or on public transportation, as a means of preventing drunk driving.
  5. Robotics: The sensor can be used in robots to detect the presence of alcohol in the environment and take action accordingly.
  6. Alcohol detection in medical field: The sensor can be used to detect the presence of alcohol in a person’s breath for medical purposes, such as in hospitals or clinics.

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Datasheet: https://www.pololu.com/file/0J310/MQ3.pdf

Explained Video: ALCOHOL SENSOR MQ3 WITH COMPLETE DETAIL [ HOW TO USE]

 

 

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