【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.