Features: - an LCD display for easy reading in low light and alerts with beep alarm and warning symbols when the allowable limit is exceeded. Portable and compact design makes it suitable for various occasions and serves as a reminder not to drink and drive. Description: Introducing the alcohol tester, a professional breathalyzer designed to make blood alcohol testing easy and accurate for everyone. Powered by two AAA batteries (not included), this compact device automatically turns off after 10 seconds to save power and can be used more than 200 times with a single battery installation. The simple operation involves pressing the power button for 3 seconds to start, waiting for 10 seconds to heat up, blowing for 3 - 5 seconds, and receiving the result on the LCD screen within 3 - 4 seconds. Equipped with smart sensors, semiconductors, and microprocessors, this highly accurate alcohol tester provides precise results and features an LCD display for easy reading even in low light. It also includes beep alarms and warning symbols when the allowable limit is exceeded, promoting safe driving practices. Compact and portable, it easily fits in your purse or pocket, making it suitable for weddings, parties, banquets, or after drinking at the bar. Item Name: Alcohol Tester Material: Plastic Category: Breathalyzer Material: Plastic Sensor: Semiconductor Alcohol Sensor Warm - up Time: within 10 Seconds Response Time: within 5 Seconds Working Environment: 5 - 40 Degrees Celsius Test Range: 0.0 - 1.9 g/L Power Supply: 2 x AAA Batteries (Not Included) : Handheld, LCD Digital Display, Portable Size Details: L: 6.8cm/2.68", W: 2.2cm/0.87", H: 11.2cm/4.41" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Alcohol Tester 5 x Mouthpieces