The Dräger Alcotest A3820 is a breath alcohol screening device for private use. Featuring professional Dräger sensor technology the device sets a new benchmark in measurement precision and reliability within the private customer market. It also meets the strictest hygiene standards thanks to an easily replaced ergonomic mouthpiece protected by a plug-on cap that keeps out dirt, regardless of where the device is stored. A backlit user interface and an acoustic feedback ensure the device is easy to use in the dark. The modern and functional housing lends the device a discreet and unobtrusive look.