Underground – Perimeter Replacement Receiver




The Underground – Perimeter Replacement Receiver is a replacement collar receiver for 700 Series Invisible Fence systems only. It will not work with 800 series or later, including the new Titanium Series. This collar is not compatible with Shields™ Indoor Avoidance transmitters. Perimeter Technologies is a leading manufacturer of electronic pet fencing. They have designed a cost effective alternative to the once exclusive Invisible Fence R21 Fence dog fence collar. This replacement collar receiver provides owners of installed dog fences a significant savings on their replacement collar receivers.

There are two Underground – Perimeter Replacement Receiver available. The first one uses a 10 Kilohertz frequency. This one needs to be used in installations experiencing frequency conflicts with neighboring containment systems. The second one uses a 7 Kilohertz frequency. This is the most commonly frequency used. If there are frequency conflicts in your area then this is the one to use.

Features of the Underground – Perimeter Replacement Receiver:
  • Patented Comfort Contacts cushion your dog’s neck in soft rubber
  • Patented 3-Way, Omni Directional antenna design eliminates the “holes” found in lesser pet fencing systems
  • Waterproof and submersible collar receiver design
  • Progressive Stimulation allows your dog to choose the fence level that is right for their personality
  • Small and light weight collar design
  • Weighs a mere 1.1 oz!
  • Long lasting replaceable lithium ion batteries
  • Designed and Manufactured in the USA
  • Limited Lifetime warranty
  • 100% compatibility – guaranteed!
Underground – Perimeter Replacement Receiver is compatible with the following Invisible Brand Fence Transmitters:
  • ICT-700
  • ICT-725
  • ICT-750
  • ICT-775
  • ICT-150
  • ICT-250
  • ICT-100
  • ICT-75
  • ICT-50
  • AT-950 Indoor transmitter
  • CT-4000

Additional information

Weight 0.50 lbs

Perimeter Technologies


10 KHz, 7 KHz