Where is my BACtrack serial number located?
The location of your serial number depends on the BACtrack that you have.
1. If your BACtrack uses AA or AAA batteries, as shown below, the serial number is located in the battery compartment. Simply slide off the battery cover, remove either battery and you will find the serial number on a white label.
2. If your BACtrack has a rechargeable battery, as shown below, the serial number is located on the spine.