"To alert the owner" means to inform or notify the person who owns something about a particular situation or issue.
Sentences with «to alert the owner»
A remote - controlled collar light helps find dogs in the dark, and a temperature sensor alerts owners when the dog is in an environment that may be too hot or cold. (petbusiness.com)
This aspect makes them great to have around the home, as they will surely alert owners if something suspicious is going on around the home. (caninejournal.com)
Some dogs can alert their owner before it actually happens. (pets.webmd.com)