Description: Featuring high accuracy, fast response time and LCD screen, this blow meter is one of the essential tools for every driver in the car. The tester is a compact and portable device to fit easily in your pocket or purse. As you attend parties, weddings, banquets or other outings, it will help you determine if you can drive and ensure safe driving after drinking. It is constructed of ABS material. The length of this product is 8.24cm, the width is 2.4cm. It is used to measure your breath concentration after drinking, which is very convenient to use. Item Name: Drunk Driving Tester Material: ABS Features: Energy Saving, Professional Use, Ultra Portable Power Adapter: DC5V 1A Working Temperature: 0-45 Degrees Celsius Warm-up Time: 10 Seconds Blowing Time: More Than 4 Seconds, Less Than 10 Seconds Response Time: Less Than 5 Seconds Working Current: 250mA (Max) Standby Current: Less Than 20UA Battery: Lithium Battery 140mAh (Included) (Can Be Tested 150 Times Continuously) Size Details: 8.24cm x 2.4cm/3.24" x 0.94" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Drunk Driving Tester 1 x User Manual