MQ-3 DIY Alcohol Tester Kit – Precision Sensor Module for Safe Driving & DIY Projects
High-sensitivity
MQ-3 alcohol sensor
detects precise ethanol concentrations with fast response time, ideal for breathalyzers, safety checks, or educational experiments. Durable
metal-oxide semiconductor (MOS) technology
ensures stable performance, resistant to humidity and temperature fluctuations for reliable long-term use. Compact
PCB-mounted module
with easy-to-connect pins, compatible with Arduino/Raspberry Pi for custom projects like smart car ignition locks or workplace sobriety tests. Includes
adjustable sensitivity potentiometer
and analog/digital output options, perfect for hobbyists, engineers, or safety professionals.
Bulk order discounts
available – wholesale pricing for retailers, makerspaces, or corporate safety programs. Global shipping, factory-direct quality.