Features 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: ≤20s Measuring Range: 0-0.19%BAC, 0-0.95mg/L Measurement Error: ±0.01%BAC Operating Temperature Range: -5℃~45℃ Storage Temperature Range: -20℃~50℃ Blowing Continuity Test: 5S ≥10L/min. 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 Breathalyzer 1 x Data Cable 1 x Lanyard 1 x User Manual