A fuel cell sensor is a device that detects the presence and concentration of alcohol in a breath sample. It works by using an electrochemical process that oxidizes the alcohol and produces an electric current that is proportional to the amount of alcohol in the sample.
The sensor consists of two platinum electrodes separated by a porous material soaked in acid electrolyte. When a breath sample enters the sensor, the alcohol molecules react with the platinum and the acid, releasing electrons and forming acetic acid and water. The electrons flow through a circuit to the other electrode, creating a measurable current. The higher the current, the higher the alcohol concentration in the breath sample.
Fuel cell sensors are widely used in breathalyzers for law enforcement, workplace testing, personal use and interlock devices. They are preferred over other types of sensors because they are more accurate, reliable, stable and specific to alcohol. They also have a long lifespan and low power consumption.
Incorporating our world class sensor wafer technology, these alcohol sensors are cost effective options to integrate into your equipment and save on development costs. The sensors are used worldwide in applications ranging from hobbyist DIY kits through to law enforcement.
The alcohol sensors have a typical return to baseline of less than 10 seconds, depending on electrolyte type. Please refer to the datasheets for full details.
All sensors are individually marked with serial number. This can be incorporated into a barcode, along with your part number or other data as required. Test data is available for 11mm breath alcohol sensors and the 16mm breath alcohol sensors on request, but please note that the data would not be usable for calibration as this depends on the full sampling system and software used to interpret the result.
We can also offer different variants of our alcohol sensors, whether this is shorter or longer connector wires. Please contact us for more information.