--- product_id: 5472368 title: "Perimeter Technology - R21 Invisible Fence Compatible Dog Collar - 7K Frequency" brand: "perimeter technologies" price: "€ 248.19" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.pt/products/5472368-perimeter-technology-r21-invisible-fence-compatible-dog-collar-7k-frequency store_origin: PT region: Portugal --- # waterproof receiver 3-antenna design pressure protection Perimeter Technology - R21 Invisible Fence Compatible Dog Collar - 7K Frequency **Brand:** perimeter technologies **Price:** € 248.19 **Availability:** βœ… In Stock ## Summary > 🐾 Keep your furry friend safe and stylish! ## Quick Answers - **What is this?** Perimeter Technology - R21 Invisible Fence Compatible Dog Collar - 7K Frequency by perimeter technologies - **How much does it cost?** € 248.19 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/5472368-perimeter-technology-r21-invisible-fence-compatible-dog-collar-7k-frequency) ## Best For - perimeter technologies enthusiasts ## Why This Product - Trusted perimeter technologies brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Safety First:** Automatic shut-off after 20 seconds of correction for your pet's peace of mind. - β€’ **Stay Connected:** Patented omni-directional design ensures signal reception from any angle. - β€’ **Ultimate Comfort:** Conductive metal-infused rubber prevents skin irritation and pressure necrosis. - β€’ **Waterproof Wonder:** The only battery-replaceable waterproof collar receiver on the market. - β€’ **Compatibility Champion:** Designed exclusively for ICT-700 series fences for seamless integration. ## Overview The PERIMETER TECHNOLOGY - R21 Compatible Dog Collar features a patented three-antenna design for optimal signal reception, ensuring your pet's safety. With a focus on comfort, it utilizes conductive metal-infused rubber to prevent skin issues. The collar includes a built-in safety mechanism that automatically shuts off after 20 seconds of correction, and it boasts a unique waterproof receiver that is battery-replaceable, making it the perfect choice for active pets. ## Description Perimeter Technology - R21 Invisible Fence Compatible Dog Collar - 7K Frequency ## Features - EASY TO FIND - Patented three antenna, omni-directional design ensures signal reception regardless of the pet's orientation to the fence - COMPATIBLE - These collars will only work with ICT-700 series (ICT-700, ICT-725, ICT-750) fences. - COMFORTABLE - Offer the most comfortable solution to create contact with your dog. Conductive metal infused rubber provides significant protection against pressure necrosis, a condition which occurs when a dog either has a negative skin reaction to metal touching their skin or the collar is left on for a prolonged period of time. - PROGRESSIVE - Perimeter brand dog fence systems feature a built in safety mechanism to automatically shut off after 20 seconds of correction. This safety features ensures no unnecessary correction for dogs who may be in the boundary field and panic or for those crazy kids who think it might be fun to lay down in the containment field. - WATERPROOF COLLAR RECEIVER - The craftsmanship that goes into every Perimeter brand dog fence is so good they offer the only battery replaceable waterproof collar receiver on the market. Perimeter brand receivers will continue to function without issue when completely submerged in water. ## Images ![Perimeter Technology - R21 Invisible Fence Compatible Dog Collar - 7K Frequency - Image 1](https://m.media-amazon.com/images/I/61WkO-EiHZL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ Great, with one complaint *by M***A on Reviewed in the United States on July 5, 2010* The collar works great. It gives a warning beep instead of just zapping the dog, which we like. It also has the low battery indicator light which is good. Our only complaint is that every now and then it just beeps for no apparent reason. We may be in the house or no where near the fence and it will give off a warning beep which freaks the dog out because he doesn't know what he's doing wrong. ### ⭐⭐⭐ One good one, one not *by A***. on Reviewed in the United States on January 5, 2022* I bought two of these. One works great, loud beeps, consistent correction for the dog. The other is weak and Intermittent. Thankfully, I have one well-trained dog that can use the weak collar, but it’s not ideal.I checked batteries in both, it’s just one collar is weak compared to the other. ### ⭐⭐⭐⭐⭐ It works with our invisible fence. *by J***H on Reviewed in the United States on March 12, 2019* When it came in i put the batteries in it and test it on the perimeter, it did not beep so re positioned the battery. It works great our dog only needs to hear the beep and he will stop. I watched him approach the perimeter, as soon as it beeped he stooped. He has been using it everyday with no problems. ## Frequently Bought Together - Invisible Fence R21 Compatible Dog Fence Collar 7k Frequency - Benebone Real Flavor Wishbone Chew Toy, Medium, Real Bacon Flavor --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/5472368-perimeter-technology-r21-invisible-fence-compatible-dog-collar-7k-frequency](https://www.desertcart.pt/products/5472368-perimeter-technology-r21-invisible-fence-compatible-dog-collar-7k-frequency) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-10-20*