Product details: Name: HD screen alcohol tester, high-precision alcohol driving test, portable non-contact breath tester Material: PC Color: black Interface: USB charging interface Features: This alcohol tester is a high-precision breath tester designed for professional and personal use, especially for detecting alcohol content in breath. Display: Clear and easy-to-read LCD display, providing intuitive forfeedback. Three-color detection indicator light, clear at a glance: red light on: drunk driving, yellow light on: drunk driving; green light on: no drinking, can drive Exquisite and small, easy to carry Product includes: 1 * Alcohol Tester Note: Due to manual measurement, please allow slight size error (1~2 cm/0.39~0.78 inches), subject to actual receipt; please allow slight color error under different monitors.