Feature:1. Accurate Chip: Equipped with highly sensitive chip, this breathalyser also accurate sensor and wide testing range of 0~0.95mg/L.2. Smart Testing: There is no need to blow the pipe for testing, and the much er non contact testing ensures high efficiency.3. Better Design: Powered by battery, the breath tester enables simple operation, just start testing after 10 seconds of warm up.4. Clear Display: TFT digital display will clearly show the data so you can quickly check the results, very convenient and reliable.5. Easy Carrying: Comes with a light weight and a compact size as well, the easy storage and carrying makes the outdoor use easier.How to Use:Start testing after 10 seconds of warm up. Specification:Item Type: BreathalyzerMaterial: ABSBattery: 602030 lithium battery 3.7V 150mAh, shipped with built in battery. Application: For drunk detection. Test Range: 0~0.95mg/L Package List:1 x Breathalyzer1 x USB Cable1 x User Manual