Upgraded alcohol tester with memory Stores up to 50 groups of test results, allowing you to track your alcohol levels over time and monitor trends. Intuitive display Three color blocks plus a numeric digit display provide a clear, ataglance reading of your alcohol concentration. Noncontact, hygienic design Noncontact breathalyzer requires no disposable mouthpieces. Purification chamber minimizes distractors and impurities to deliver a precise alcohol concentration reading. Longlasting power USB rechargeable with a capacity lithium battery for extended use on a single charge. 23 practical use scenarios safety before driving or operating machinery: verify your sobriety quickly and reliably. Household monitoring for multiple users: the memory stores results for different people, helping you track changes over time. Workplace or group safety checks: maintain responsible drinking practices and document readings as needed. Key attributes and performance Function: breathalyzer with memory, noncontact measurement, fast and precise alcohol concentration readouts. Design: noncontact sensor with a purification chamber for accurate results without the need for mouthpieces. Power: USB rechargeable with a longlasting lithium battery. Readout: three color indicators plus a digital display for easy interpretation. Compatibility and practicality: compact, portable, and suitable for individual or smallgroup use, with convenient data storage for reference.