Features: Ensure safe driving with our professional breathalyzer, featuring advanced sensor technology for quick and accurate blood alcohollicity concentration measurements. This portable breath alcohollicity tester boasts a noncontact designs, a easy to read lcd display, and automatic calibration to maintain precise and reduce human errors. For drivers, especially business professional who frequently attend social event, as well as family seeking safety assurances and traffic enforcement officers conducting roadside checks. Perfect for pre drive self testing, post party evaluations, and use in bars or restaurants to ensure patrons are fit to drive, enhancing community responsibility. With its lightweight abs construction, this breathalyzer is designed for convenience, allowing you to conduct alcohollicity tests anytimes, anywheres, ensuring peace of mind on road. Specifications: Component:ABS Size:Approx.11x2.6cm/4.33x1.02inch Voltage: 5V Current: 1A Preheating time: 10S Reaction time: 5S Breathing alcohollicity measurement range: 0-200mg/100ml. Measuring range: 0-500 Measurement accuracy: 0-500 Resolution: 100 Package Includes: 1pcs Alcoholicity Breath Tester note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.