Purification technology This alcohol tester features a builtin purification room that effectively eliminates impurities, to ensure only alcohol is detected for precise and healthier measurements. definition display The device features a definition color display, offering immediate and legible results at a glance, suitable for use in various lighting conditions. Visual system Equipped with a threecolor indicator light, this tester provides clear visual cues regarding alcohol levels, making results easy to understand without confusion. Audible intoxication alarm A builtin intoxication alarm delivers voice reminders when alcohol levels exceed safe limits, helping you make responsible decisions promptly. Use scenarios After a night out, check your level before deciding whether to drive. At events or workplaces where safety requires monitoring alcohol levels, use the tester to support responsible decisions. For health awareness during activities that require alertness or operation of machinery or vehicles, use the device to assess readiness.