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MQ-3 Alcohol Gas Sensor Module For Arduino
€12.00
Tax included
MQ-3 alcohol gas sensor module for detecting ethanol vapor. Powered by 5V, it provides both an analog output and a digital TTL output via an LM393 comparator.
Ideal for Arduino and Raspberry Pi projects requiring air quality monitoring or breathalyzer circuits.
The MQ-3 gas sensor module is designed to detect ethanol and alcohol vapor in the air. It features the ZYMQ-3 sensing element paired with an LM393 comparator, providing both an analog output proportional to gas concentration and a digital (TTL) output for threshold-based detection.
Operating at 5V DC, this module is suitable for home safety projects, digital breathalyzer circuits, or environmental monitoring stations compatible with Arduino, Raspberry Pi, and ESP32.
Technical Specifications
- Sensor: MQ-3 (high sensitivity to ethanol)
- Supply Voltage: 5V DC
- Outputs: Analog (0-5V) and Digital (TTL, active low)
- Comparator Chip: LM393
- Module Dimensions: approx. 32 x 22 x 27 mm
- Fast response time and long service life
SENJANMQ3
4 Items
MQ-3 alcohol gas sensor module for detecting ethanol vapor. Powered by 5V, it provides both an analog output and a digital TTL output via an LM393 comparator.
Ideal for Arduino and Raspberry Pi projects requiring air quality monitoring or breathalyzer circuits.