Thank you for viewing! This is a brand new, unused alcohol checker (alcohol detector). It's very easy to use! Simply press the 【POWER】 button! Late-night drinking party... Work in the morning a few hours later... You commute by car, but you might still have alcohol in your system... "Even a hangover can lead to drunk driving!" After a warm-up of about 10 seconds, the measurement time is about 5 seconds. After the measurement, the results are displayed, and the power automatically turns off. Check before driving the next morning when you might still have alcohol in your system! ☆ High-performance alcohol checker ☆ Contents: Main unit x1, strap ☆ Measurement range: 0.00% to 0.19% BAC (alcohol concentration in breath) ☆ Digital display results: (%BAC, mg/l) ☆ Power supply: 2 x AAA batteries ☆ Size: 95 x 36 x 18mm Instant purchase is welcome without comments! Thank you very much!