Precise measurement and alarm function: The breathalyser provides accurate results and sounds an immediate alarm if the alcohol level is too high. Thanks to the highly accurate semiconductor sensor, you can be sure that the test results are reliable. Easy to use: Switch on the tester, wait 15 seconds for it to warm up and then blow for 4-5 seconds. Within 3 seconds, you will see the result on the LCD screen – straightforward and fast. Energy-saving: The tester automatically switches off after 10 seconds to save battery power. With 2 AAA batteries (not included), over 500 tests can be performed. Ideal for long-lasting use without frequent battery changes. Compact and Portable: Weighing just 60g, the breathalyser is light and easy to carry. Perfect for when you're on the go – simply slip it into your pocket or handbag and use it anywhere you need to, such as at parties or events. Hygienic and environmentally friendly: the tester comes with 12 interchangeable mouthpieces that can be cleaned and reused after use. Ideal for testing with family and friends without worrying about hygiene.