Features: Ensure driving safety with our Voice Alcohols Tester, featuring high precisions sensors and real time voice feedback for quick and accurate BAC readings. This breathalyzer offers a large display, and multifunctional including flashlight and 50 test record storage, making it for use. Perfect for everyday drivers, social event attendees, traffic enforcement officers, and staff who prioritize safety and responsibility. Use this device for pre drive self checks, post party assessments, or as a safety service in bars and restaurants. The tester withstands various environments, providing reliable performances and peace of mind wherever you are. Specifications: Material: Plastic Test Records: 50 Battery: 1200mAh(Include) Test Distance: 3-5cm Test Range: 0-200mg/100ml BAC Working Temperature: -5 to 45℃ Storage Temperature -30 to 70℃ Size: About. 33x180mm/1.3x7.09in Package Includes: 1pc Breathalyzer note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.