LED Breath alcohol tester with Clock Convenient to carry by keychain Countdown and count-up timer keeps the deadline of your p

Product Introduction:

Features:1) Design patent2) semiconductor sensor inside3) warm-up time:within 10 seconds4) response time :within 5 seconds5) Operation temperature:5-40 °C6) Convenient to carry by keychain7) Countdown and count-up timer keeps the deadline of your parking8) 3 test steps with LED indication9) test result:    Safety: under 0.02% BAC    Caution: 0.02% - 0.05% BAC    Danger: over 0.05% BAC 10) Battery: 2 x AAA alkaline batteries (not included)11) Clock: uses 1 x AG13 battery (included)12) Size: 70 x 35 x 21mm

Hottest Breath alcohol tester with lcd Clock WH2928