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Install two AA Batteries in the battery compartments by paying attention to the battery polarity.
Insert a mouthpiece into the slot on the side of the alcohol tester.
Ensure whether it securely fits or not.
Extra mouthpieces should be used for other person’s testing for sanitary reasons.
5.2 Operation with app
Step 1. Open the app.
Note.
-Bluetooth must first be switched on in order to connect to the device. (Go to the Settings on your
smartphone and turn on Bluetooth)
Step 2. To turn on the device, press and hold Power button for 2 seconds.
Step 3. If pairing is successful, the screen on your smartphone will show "START TEST". Tap "START
TEST" on your smartphone.