Purification technology: This alcohol tester uses a purification room to remove impurities and detect only alcohol, delivering accurate measurements. definition display: The definition color screen lets you read results instantly and clearly, improving usability in any environment. Visual system: The intuitive three color indicator light system lets you interpret your alcohol level at a glance, reducing confusion during use. Audible intoxication alarm: The built in audible alarm alerts you when your alcohol level is unsafe, supporting responsible decision making. use scenarios: Before driving or operating machinery, use the tester to assess your level and make a safe choice. Workplace or fleet safety: In small businesses or transport or service fleets, use to promote safety and responsible alcohol use among staff. Social and event settings: At gatherings or venues, offer quick checks for guests to help manage alcohol consumption responsibly.