Features: High accuracy Two units display:%BAC !#!amp!*! g/l Auto power off Quick response and resume Detect range: 0.00~0.19% BAC !#!amp!*! 0.0~1.9g/l Powered by 2 x AAAalkaline batteries (not included) Specifications: Size:95*36*16 mm Net weight:23 g Color:White Packing Content: 1 x Digital Breath Alcohol Tester 1 x English manual 1 x Strap