High-Level Accuracy: Our breathalyzer, equipped with advanced sensor technology, delivers reliable BAC results that you can trust. This professional-grade alcohol tester monitors your blood alcohol level to ensure responsible driving. Note: For higher accuracy, it is recommended to wait 20 minutes after drinking before using the tester. Also, maintain an interval of 2-3 minutes between each test. Ease of Use: This pocket breathalyzer is user-friendly. Simply insert two AAA batteries (not included), press the power button to start and press the middle button to enter the alcohol testing mode. After a 20-second warm-up, the device provides the test results on its LCD screen within just 3 seconds of blowing. Wireless Bluetooth Connectivity: It uploads test data in real-time and provides efficient cloud management, making it easy for you to keep track of your BAC level wherever you are. Hygienic Non-Contact Testing: We have designed our Breathalyzer to be hygienic. It employs a non-contact blowing method for testing, eliminating the risk of infections that can come with traditional contact testing methods. Lightweight and Portable: This Breathalyzer, is as handy as it gets. Its small and pocketable size makes it perfect to be carried in your purse or pocket to weddings, parties, banquets, or other social events to ensure your safety post-celebrations. size: 7 x 4cm Material: plastic colour: White Package Contents: 1 x Breathalyzer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.