- Accurate calibrations: The breathalyzer uses high-precision sensor technology to deliver consistent, reliable results in a BAC range of 0.00 to 0.19% BAC. You can trust it to provide dependable readings every time. - Safe operation: The device features a one-button start/stop design for simple operation and the ability to power off anytime, enhancing user safety. - Versatile design: Protect yourself and others by knowing your alcohol level. Ideal for home use, workplace safety checks, or before social events. Detect blood alcohol content and monitor safety at home or at work. Powered by 2 x 1.5 V batteries (not included); this device is versatile and meets your needs. - Optimized process: Start testing with a single button and receive fast, accurate results on a clear LCD display. The breathalyzer provides a simple, user-friendly experience that streamlines the test process and saves time and effort.