Fast and accurate reading in seconds The Alcohol Tester Breathalyzer uses an ultrasensitive semiconductor sensor to determine alcohol content within a few seconds, helping you assess driving safety quickly and reliably. Longlasting, portable power Up to 300 uses per full charge. It charges via a USB cable and can be powered by a phone charger or a computer USB port, making it easy to use on the go. Intelligent alarms and clear indicators If the result is 0.05% BAC (or 0.5 g/L), the red indicator light stays on, the Danger icon on the display flashes, and there is a rapid beep. If the result is greater than or equal to 0.02% ABC and less than 0.05% BAC, the yellow indicator light stays on. Practical use scenarios Before driving: quickly confirm whether it is safe to drive after drinking or to determine if you should refrain from driving. Social settings: check your impairment level after social drinking to avoid driving under the influence. Workplace safety: use as a preduty screening tool in safetysensitive roles to ensure compliance and reduce risk.