Features: 1) Digital alcohol tester with 0.01% BAC increment for reading 2) LCD display 3) Detect range: 0.00 ~ 0.4% BAC 4) Audible alert 5) Quick response and resume 6) Power off alert 7) Use 2 x AAA alkaline batteries (not included) 8) Unit size: 105 x 42 x 19mm Outer packing: 100pcs/ctn Carton dimensions: 28 x 25.5 x 32.5cm G.W.: 8.8kg