Features: 1. High-Precision Measurement: Built-in sensor chip accurately determines BAC levels through breath analysis, reliably identifying drinking status for driving decisions. 2. Intuitive Display: LCD screen with tri-color indicators (green=sober, yellow=drinking, red=intoxicated) ensures instant result recognition. 3. Portable Design: Compact size for law enforcement/personal use. Simple operation with voice-guided breath test. 4. Alert System: Audible alarms activate for drinking/drunk driving detection, enhancing warning effectiveness. 5. Extended Battery: Type-C rechargeable lithium battery delivers long-lasting performance. Product Parameters: Manufacture Country： China Sensor: Direct Thermal Alcohol Sensor Test Range: 0.000~0.199%BAC Accuracy voltage: ±0.005%BAC Voltage: 3V Response Time: <5S Blowing Time: 10 seconds (usually 3-5 seconds will do) Warm-up Time: 15 seconds Product Size: 9.5*2.5*1.5CM Power Supply: USB Charging Interface Package Included: 1*Alcohol Tester 【NOTE】 *Images on this page are for illustration only and due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! *Please allow 1-2cm measuring deviation due to manual measurement.