Portable alcohol tester helps you quickly detect alcohol concentration with a high-sensitivity sensing chip for accurate measurements. Features a large LED display and three-level indicator lights for clear, easy-to-read results. The device uses a non-contact blowing detection method, eliminating the need for a mouthpiece and promoting a healthier testing experience by reducing bacterial buildup. Equipped with intelligent chips and high-sensitivity sensors, it delivers reliable results with a fast response time of less than 5 seconds. Includes a sound alarm function for immediate feedback. Powered by a built-in high-capacity lithium battery, it offers low power consumption and long standby time; a full charge supports approximately 150 tests. Constructed from premium ABS material for durability and portability. Compact and lightweight design allows for convenient use anytime, anywhere. Specifications: Color: Black Material: ABS Display: LED Screen Test Range: 0.000–0.199% BAC (0–1.9 g/L) Accuracy: ±0.005% BAC Response Time: Less than 5 seconds Warm-up Time: 10 seconds Blowing Time: 10 seconds (typically 3–5 seconds) Input Power: 5V, 1A Battery: Built-in 3.7V, 120mAh lithium battery Working Temperature: 0–45°C Item Size: 58.74 × 30.6 × 13.5mm (2.3 × 1.2 × 0.5in) Item Weight: 19g (0.7oz) Package Size: 100 × 77 × 22mm (3.9 × 3.0 × 0.9in) Package Weight: 46g (1.6oz) Note: For best results, perform the test 20 minutes after drinking. Packing List: 1 × Alcohol Tester 1 × USB Cable 1 × User's Manual