Perimeter Invisible Fence Replacement Receiver (7KHz)

7K is the most common frequency, the PIR-003 10K was used in installations experiencing frequency conflicts with neighboring containment systems. Perimeter Technologies, a leading manufacturer of electronic pet fencing, has designed a cost effective alternative to the once exclusive Invisible Fence R21 Fence dog fence collar, providing owners of the nationís largest and best known professionally installed dog fence brand a significant savings on their replacement collar receivers.Donít be fooled by the low aftermarket price. Perimeter Technologies is a brand you can trust with products that are loaded with exclusive features and benefits not found in the original. As a matter of fact, Perimeter Technologies' President is the same person that founded Invisible Fence brand back in 1976!Compare Perimeter Technologies with your current R21 Patented Comfort Contacts cushion your dogís neck in soft rubber Patented 3-Way, Omni Directional antenna design eliminates the ìholesî found in lesser