Description: Dual LCD Display Breath Alcohol Tester:Digital display of measurement results, with clock functions, one button easily operate. High Accuracy Alcohol Detector: Two temperature display function (Celsius and Fahrenheit), Detect range is 0.00~0.19% BAC & 0.0~1.9g/l. Quick Response & Resume: Automatic power off function for saving power, provide long term service. It can ensure your driver is safe. Digital Alcohol Test: With audible alert, powered by 2 x AAA batteries (not included).Also as a countdown timer, powered by 1x AG13 (We offered). Portable Size with Lanyard: Small size and lightweight, easy to put in purse or pocket. Specification: Item Type: Alcohol Tester Material: Plastic Size: Approx. 100x37x17mm/ 3.94x1.46x0.67inch Color: White Battery Type: 2 * AAA( Not Included ) Range: 0.000% -0.19% BAC (0.00-1.9g/L) Accuracy: ±0.01%BAC Display:Dual LED Display Package Includes: 1 Piece Breath Alcohol Tester 1 Piece Lanyard 1 Piece Manual Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!