Feature: 1. Accurate Chip: Based on high accurate chip, the breathalyser has smart sensor for more accurate and reliable testing. 2. Smart Testing: Integrated design, slide up the baffle to close and prevent dust, slide down the baffle for testing. 3. Better Design: Powered by battery, the breath tester enables safe and simple non contact detection through one breath. 4. Clear Display: LED digital display can clearly show the data, also has 3 colour indicator for quick view at a glance. 5. Easy Carrying: Comes with a light weight and a compact size as well, the easy carrying makes the outdoor use easier. Specification: Item Type: Breathalyzer Sensor Type: Semiconductor Type Charging Input: 5V1A Response Time: less than 20s Measuring Range: 00.19percent BAC, 00.95mgL Measurement Error: +0.01percent BAC Operating Temperature Range: 5 celsius ~45 celsius Storage Temperature Range: 20 celsius ~50 celsius Blowing Continuity Test: 5S more than 10Lmin. Battery Type: 1 x 02030 polymer lithium battery 200mAH, delivered with built in battery. Working Current: 150mA Charging Method: DC 5V 1A. Package List: 1 x Breathalyzer1 x Data Cable1 x Lanyard1 x User ManualAccurate Chip: Based on high accurate chip, the breathalyser has smart sensor for more accurate and reliable testing. Smart Testing: Integrated design, slide up the baffle to close and prevent dust, slide down the baffle for testing. Better Design: Powered by battery, the breath tester enables safe and simple non contact detection through one breath. Clear Display: LED digital display can clearly show the data, also has 3 colour indicator for quick view at a glance. Easy Carrying: Comes with a light weight and a compact size as well, the easy carrying makes the outdoor use easier.