Digital Alcohol Tester for Phone

bargain

Plug the unit into the bottom of your Phone
When phone screen activated, press the power switch for 2seconds, the tester will show wait and 0 alternately
The tester will then show blow and count down from 10
Please close to the blowing vent and blow for seconds, afterfinishing countdown, display screen will show the test result
There are different results on the showing
You can adjust the unit from %Bac to mg/l Brae by pressing thepower switch
The result will be displayed for about 15 seconds
Then, the word OFF will be blinking for 2 seconds
The tester will be turned off automatically by itself
Testing accuracy: At 0.05%Bac, -0.01 / +0.03% Bac