Professional-Grade MQ-3 Ethanol Detection Alarm Kit

High-Precision Sensor
Equipped with an MQ-3 semiconductor gas sensor for accurate ethanol vapor detection (10-1000ppm range), ensuring reliable DUI or workplace safety monitoring.
Durable & Compact Design
Features a corrosion-resistant alumina (Al₂O₃) ceramic substrate and gold-plated electrodes for extended lifespan. The modular PCB design allows easy integration into DIY projects or industrial systems.
Multi-Scenario Application
Ideal for breathalyzer prototypes, alcohol production monitoring, lab safety checks, and educational electronics projects. Low power consumption (5V DC) suits portable or fixed installations.
Plug-and-Play Compatibility
Includes pre-soldered pins for seamless Arduino/Raspberry Pi connectivity. Calibrated output signals (analog/digital) simplify data processing with microcontrollers.
Cost-Effective Bulk Solution
Direct-from-factory pricing ensures unbeatable value for wholesalers stocking safety equipment or electronics components. MOQ-friendly with tested batch quality control.