---
product_id: 15919307
title: "Perimeter Technologies Invisible Fence R21 Replacement Collar 10K - 1 Dog and Free Backup Collar Strap"
brand: "perimeter"
price: "€ 189.80"
currency: EUR
in_stock: true
category: "Misc."
url: https://www.desertcart.ie/products/15919307-perimeter-technologies-invisible-fence-r21-replacement-collar-10k-1-dog
store_origin: IE
region: Ireland
---

# Perimeter Technologies Invisible Fence R21 Replacement Collar 10K - 1 Dog and Free Backup Collar Strap

**Brand:** perimeter
**Price:** € 189.80
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Perimeter Technologies Invisible Fence R21 Replacement Collar 10K - 1 Dog and Free Backup Collar Strap by perimeter
- **How much does it cost?** € 189.80 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/15919307-perimeter-technologies-invisible-fence-r21-replacement-collar-10k-1-dog)

## Best For

- perimeter enthusiasts

## Why This Product

- Trusted perimeter brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Perimeter Technologies Invisible Fence R21 Replacement Collar 10K - 1 Dog and Free Backup Collar Strap

## Features

- Don't 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!
- This replacement collar receiver for 700 Series Invisible Fence systems only and will not work with 800 series or later, including new Titanium Series. The Perimeter collar is not compatible with ShieldsTM Indoor Avoidance transmitters.
- FULLY COMPATIBLE WITH THE FOLLOWING INVISIBLE FENCE BRAND 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
- Please indicate 7K or 10K frequency when ordering. 7K is the most common frequency, the 10K was used in installations experiencing frequency conflicts with neighboring containment systems.
- Free E-Book

## Images

![Perimeter Technologies Invisible Fence R21 Replacement Collar 10K - 1 Dog and Free Backup Collar Strap - Image 1](http://ecx.images-amazon.com/images/I/41dWMPz-iNL.jpg)

---

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**Shop now:** [https://www.desertcart.ie/products/15919307-perimeter-technologies-invisible-fence-r21-replacement-collar-10k-1-dog](https://www.desertcart.ie/products/15919307-perimeter-technologies-invisible-fence-r21-replacement-collar-10k-1-dog)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-16*