High Tech Power Pet Ultrasonic Pet Collars

Additional/Replacement High Tech Power Pet ms-4 & MS-5 ultrasonic pet collar key for the High tech pet power pet Door MS-4 is a water-resistant key MS-5 is a durable, waterproof key Batteries last approximately 3 months 1.5 x 1 x 0.5 dimensions These ultrasonic High Tech collars are used to open all models of the High Tech Power Pet electronic pet doors.  The Case measures 2" wide x 1" high by 3/8" deep and the collar adjusts from 1" to 24" long.  There are two types of collar keys, the High Tech Pet MS-4 and MS-5. Both operate on a B3V1A battery, which is not rechargeable. This dog collar battery is specific to this state of the art design pet door models and a new replacement battery will need to be purchased around every three months. The Ultrasonic Collar Keys can be programmed to work at a range from 1 ft to 10 ft from the door (the inside and outside ranges can be adjusted independently). First, push the SENSORS button of either the inside or outside depending on which