Features: 1.Has a smart micro?processor with high accuracy for you to broadcast. When your blood wine content exceeds the limit, it will tell you whether it is suitable to drive in time through a sound alarm and escort you. 2.Nano?material semiconductor sensor with high?performance chip, so that the sensitivity is faster, the accuracy is higher, and the anti?interference ability is stronger. 3.Suitable for various occasions, company gatherings, bar hangovers, couple dating, family gatherings, and friends gatherings. It lets you know if you have exceeded the standard, how much you drink, and how long you can recover. 4.It adopts a hand?held blowing design, which is easy to use and quick to respond and LED backlit digital display makes it easy to read at night and during the day. 5.In a convenient and efficient design concept, allows you to measure the wine concentration anytime, anywhere, and travel safely and healthily. 6.Made of material of ABS plastic, which makes it more lightweight and durable, can last for a long time. Specification: Condition: 100% Brand New Item Type: Breathalyzer Color: Black and Blue Material: ABS Plastic Sensor: High sensitivity semiconductor drinking sensor Test Range: 0.00-0.19%BAC (0.1-1.9g/ L) Wine: -0.01-0.02%BAC (At 0.05%BAC alarming point) Warm-Up Time: 10 seconds Blowing Time: Less than 10 seconds Reaction Time: