Accurate Alcohol Measurement: safe driving with our breathalyzer, which provides highly accurate alcohol content readings. Ideal for personal or professional use. Anti- Design: Built to last, our alcohol tester features a robust anti- design, making it suitable for all weather conditions. Intelligent Voice Reminder: Enhance your testing experience with voice prompts that guide you through testing process, ensuring ease of use and accuracy. Clear LCD Display: The device comes with a large, easy-to-read LCD display that shows your test results clearly, even in low light conditions. Color: Black Material: alloy Package Contents: 1 x English display tester 1 x data cable Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.