Fast and Accurate: The breathalyzer is powered by a high-quality fuel cell sensor and uses advanced technology commonly found in professional settings. It provides accurate and reliable BAC results, capable of detecting traces of alcohol and measuring high BAC levels with precision up to three decimal places. Auto Alarm: One-touch operation makes it easy to turn on and perform a test in seconds. If the alcohol level exceeds the preset limit, the device will automatically sound an alert. LCD Display: This portable breathalyzer is simple to operatepress and hold the power button for 2 seconds to start. Wait 10 seconds for warm-up, then blow into the device for 5 seconds. Results are displayed on the LCD screen within 3 seconds and remain visible for 10 seconds. Energy Efficient: Features automatic shut-off to conserve power. Powered by two AAA batteries (not included). The device turns off automatically 20 seconds after the test is completed. Exquisite Design: Compact and lightweight, this breathalyzer is easy to carry and allows users to quickly assess their alcohol levels before driving. Ideal for personal use at home or on the go. The sleek design fits easily into a pocket.