Alcohol Sensor Module (MQ3)

Introduction:
Alcohol Sensor(MQ3) module is useful for gas leakage detection (in home and industry). It is suitable for detecting Alcohol, Benzine, CH4, Hexane, LPG, CO. 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.

The Alcohol Sensor Module (MQ3) is a gas sensor that detects the concentration of alcohol in the air. It uses the MQ-3 sensor, which is sensitive to alcohol and other gases, and converts the concentration of gas in the air into an analog signal. This signal can be used to trigger an alarm or to control a device, such as a breathalyzer. The MQ-3 sensor is highly sensitive and can detect alcohol concentrations ranging from 25 to 500 ppm.

The Alcohol Sensor Module (MQ3) is a highly sensitive sensor that is commonly used for detecting the presence of alcohol in the air. It is designed to be used in a wide range of applications, such as breath analyzers, automotive systems, and even in home automation systems. The MQ3 sensor is based on a semiconducting metal oxide (SnO2) element, which changes its electrical resistance in the presence of alcohol. The sensor has a fast response time and can detect alcohol concentrations in the range of 25 to 500 ppm.

The MQ3 module has both analog and digital outputs, making it easy to interface with microcontrollers and other devices. The analog output provides a voltage signal that is proportional to the alcohol concentration, while the digital output can be used to trigger an alarm or other actions when a certain threshold is reached. The module is easy to use and can be powered using a 5V DC supply.

In summary, the MQ3 Alcohol Sensor Module is a reliable and accurate sensor that can be used in a variety of applications to detect the presence of alcohol. Its sensitivity and fast response time make it ideal for use in breathalyzers and other alcohol detection systems, while its ease of use and compatibility with microcontrollers make it a popular choice for hobbyists and DIY projects.

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Features:

Detection Gas: Alcohol Gas
Concentration: 0.4mg/L ? 4mg/L
Heater Voltage: 5.0V
Load Resistance: Adjustable
Heater Resistance: 31? ? 3?
Heater Consumption: <900mW
Applications:

Alcohol checker.
Breathalyser.