Grove - Alcohol sensor MQ303A

Grove - Alcohol sensor

A complete alcohol sensor module for Arduino or Seeeduino, based on the MQ303A semiconductor alcohol sensor. Suitable for breathalyzers with good sensitivity and fast response.

Features:

• Highly sensitive for low alcohol concentrations
• Excellent measurement speed with fast response
• Grove unit interface for versatile application possibilities

Application:

• DUI test(drunk driving)
• Alcohol test
• Detection of the volatilization of alcohol

Specifications:

• Dimensions: 40mm x 20mm x 12mm
• Weight: 11g
• Power requirement: 5 VDC at ~120 mA (heating switched on)
• Detection gas: Alcohol
• Concentration: 20-1000 ppm alcohol
• Interface: 1 TTL-compatible input (SEL), 1 TTL-compatible output (DAT)
• Heating voltage: 0.9 V ± 0.1 V AC or DC
• Heating current: 120 ± 20mA

What is Grove?

Grove facilitates connection, experimentation and simplifies the prototyping process. No jumpers or soldering are required. More than 300 Grove modules have been developed to cover a wide range of applications and fulfill a variety of requirements. Not only the hardware is open source, but also the software. 

We offer various Grove shields to enable a connection to the Grove system with various microcontrollers.

Parts list:

• Grove - Alcohol sensor: 1
• Grove cable: 1