Non contact alcohols analyzer with safe non-contact design, built-in high-precision solid-state sensor for rapid detection of alcohols levels. Easy operation with red light indicator for charging and tri-color light and sound alarm for test results. Portable design with compact and lightweight body, easy to fit into a wallet or pocket. Usage suggestion: Measure 20 minutes after drinking alcohols, and it takes about 20 minutes for alcohols to enter the bloodstream. Take an average of 10 minutes between two tests to improve accuracy.