In order to let your pet enter and exit your Smart Pet Door as they please, your pet needs to have a Smart Pet Tag attached to their collar. However, you can manually open and close your Smart Pet Door via the Pawport app or directly on the top control panel if you choose to not have your pet wear the Smart Pet Tag.
The Smart Pet Tag also measures the time that your pet is inside and outside, the number of times they went outside, and for how long. It also measures general activity and sleep time.