[Compact and Hygienic]Portable alcohol tester with no-contact breath testing, eliminating the need for mouthpieces and preventing bacterial growth. [Rapid Results]Quick 20-second testing process: 10 seconds for warm-up, 3-5 seconds for breath sample, and results within 5 seconds. [Clear LED Display]High-contrast LED screen shows readings in dual units for easy interpretation. [Tri-Color Indication]Red, orange, and green indicator lights clearly display alcohol concentration levels. [Rechargeable Battery]Built-in 3.7V 200mAh lithium polymer battery supports up to 150 continuous tests on a single charge. [Wide Testing Range]Measures from 0.00 to 0.19% BAC (0-1.9g/l) for comprehensive alcohol detection. Specifications: Sensor Type: Semiconductor Display: LCD (Black and White) Measurement Units: mg/l (BrAC), mg/ml (BAC) Testing Modes: Quick Detection, Automatic Detection Power Source: Rechargeable 3.7V 200mAh Lithium Polymer Battery Power Adapter: DC5V 1A Operating Temperature: 0-45℃ Warm-up Time: 10 seconds Breath Sample Time: Up to 10 seconds (minimum 4 seconds) Response Time: Less than 5 seconds Working Current: 250mA (maximum) Standby Current: Less than 20μA Dimensions: 100mm x 28mm x 16mm Material: Plastic Note: This product is Japanese version, please confirm before purchasing.