MQ-3 Alcohol Sensor Module, 32x22x18mm, Digital, LED, TTL Output

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The MQ-3 Alcohol Gas Sensor Model 3 (32×22×18 mm, Digital TTL Output, LED Indicator) is the ideal solution for accurate and fast detection of alcohol concentration in the air. Renowned for its high sensitivity to alcohol and slight sensitivity to benzene, this sensor is the preferred choice for applications such as alcohol checkers and breathalyzers for blood alcohol level detection. Brand: MQ Model: MQ-3 Origin: China Dimensions: 32 mm (L) × 22 mm (W) × 18 mm (H) Weight: 10 g Operating Voltage: 5V Output Type: Digital (TTL) & Analog Preheat Duration: 20 seconds Indicators: Power Indicator LED, Low TTL Indicator LED Sensitivity Adjustment: Potentiometer Key Features: 1. High responsiveness to alcohol vapor, delivering precise and reliable measurements in various environments. 2. Digital design enables easy integration into electronic circuits and allows operation without a microcontroller, simplifying installation and usage. 3. Analog output for fine sensitivity control and accurate gas concentration measurements, alongside digital output for straightforward connectivity. 4. Built-in LED indicators provide instant feedback on power and signal status, ensuring user confidence. 5. Versatile for use in laboratories, homes, offices, factories, and breathalyzer devices, enhancing safety and protection. Ideal Use Cases: - Personal and professional breathalyzer devices - Alcohol detection systems in vehicles or public spaces - Air quality monitoring tools for offices and factories - Educational and research projects in electronics and sensing Benefits: The MQ-3 Alcohol Gas Sensor offers peace of mind through its high accuracy and ease of installation. Whether you need to monitor air quality or develop an electronic alcohol detection project, this sensor enhances safety and awareness in any environment. Care Instructions: - Avoid exposure to dust or high humidity to maintain accuracy and lifespan. - Ensure correct voltage supply (5V) and prevent circuit overload. - Allow a preheat period of 20 seconds before use for optimal results. Choosing the MQ-3 Alcohol Gas Sensor Model 3 means investing in advanced safety and measurement precision, making it an essential addition to any modern sensing system for the home, workplace, or laboratory.

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Model: MQ-3
Country of Origin: China
Operating Voltage: 5V
Weight: 10g
Preheat Duration: 20 seconds
Brand: MQ
Dimensions: 32mm (L) × 22mm (W) × 18mm (H)
Output Type: Digital (TTL) or Analog
Analog Output Voltage: 0 to 5V
Digital Output Voltage: 0 or 5V (TTL Logic)
Indicators: Power Indicator LED, Low TTL Indicator LED
Adjustable Sensitivity: Yes, via potentiometer
Alcohol Sensitivity: High
Benzine Sensitivity: Low

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