Model MS-5 MICROSONIC™ Ultrasonic Pet Door Collar Include Extra Batteries?:2 Extra Batteries (+13.99) In the event of a

In the event of a power outage the battery takes over

It is extra rugged so it won't get damaged during your dog's "ruffhousing"

If you are one of the many thousands of folk that love our Power Pet fully automated pet door

Comes with a heavy duty security panel that secures the door when not in use

Keeps Security In - Intruders Out

Model MS-5 MICROSONIC™ Ultrasonic Pet Door Collar Include Extra Batteries?:2 Extra Batteries (+13.99) In the event of aSuper Advanced Technology, Value Pricing! The Gold Standard of Pet Electronics Technology Digital circuitry in this state of the art design provides a strong signal and maintains accuracy over all temperature ranges. It is extra rugged so it won't get damaged during your dog's "ruffhousing". With a robust, fully enclosed ultrasonic transducer speaker, it is immersible to 6ft., and although we don't recommend immersing your dog in 6 ft. of water