1. 3 test step with LED indication
-- Safety: Under 0. 02% BAC
-- Caution: 0. 02%~0. 05% BAC
-- Danger: Over 0. 05% BAC
2. Quick response and resume
3. Torch function
4. Key chain
5. Use 2*"AAA" alkaline batteries (not included)
6. Unit dimensions: 73*29*20 mm
