SincereetaliThis alcohol tester is designed to accurately measure the alcohol content in the body. It is easy to use, it measures the alcohol content by simply blowing on the instrument. Compact design and portable size, easy to carry. Features: A useful breathalyzer to accurately measure the body alcohol content (BAC) by simply blowing on the instrument. Advanced flat surface alcohol sensor with high sensitivity and fast response. It can warn when the BAC is over 0.050% with intelligent microcontroller control. Large LCD display with backlight, convenient for night use. Compact design and portable size, easy to carry. Auto power off, energy saving and easy to use. NOTE: To ensure the measurement accuracy, it is recommended to measure 2-3 times and the time interval is more than 3 minutes. Specifications: Color: Black Material: ABS LCD Screen Size: 1.7 Measuring Range: 0.000-0.199% BAC Accuracy: 0.01% BAC BAC Alarm: 0.050% BAC Power Supply: 3 * 1.5V AAA Batteries (Not Included) Item Size: 103 * 75 * 28mm / 4.06 * 2.95 * 1.10in Item Weight: 60g / 2.12oz Package Size: 15.8 * 10.5 * 5cm / 6.22 * 4.13 * 1.97in. Package Weight: 133g / 4.69oz.