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 acoustic feedback ensure the device is easy to use in the dark and support the test sequence with clear directions. The modern and functional housing lends the device a discreet and unobtrusive look.