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Perimeter Technologies is the newest kid on the block to offer dog in-ground pet fencing. While they may be the youngest manufacturer, they have the most experience. Perimeter Technologies' president, John Purtell, started Invisible Fence Company in 1976 before leaving to pursue other challenges. Scott Touchton, the former chief engineer at Invisible Fence, now holds the same position with Perimeter.  His expert designs have vaulted Perimeter Technologies to the peak of the dog fencing industry, both in the professional arena with the Pet Stop brand, and now in the DIY arena with the Perimeter brand. The vast experience and knowledge of these two industry pioneers has now resulted in the first pet containment products designed to improve the functionality of even competitor's products, like the Invisible Fence compatible ComputerReceiver and the Pet Stop brand replacement dog fence battery for Invisible Fence brand R21 receiver collars.
 With the most standard features in functionality, safety and comfort the Perimeter in-ground dog fences are perfect for any dog or cat, in any situation.

Perimeter Brand Dog Fence Features:

Patented Temp Check: Only Perimeter brand dog fence systems feature internal circuitry which provides stable operation over a broad range of temperatures. Competitive brands signal field width can vary up to 100% from 40 to 90 degrees Fahrenheit. What does that mean? A Perimeter brand dog fence set to have a field width of 8 ft. will have a maximum variation in field width of 5% (less than 5") while a competitive system can have a variance of up to 100% either way for cold or warm environments. In other words, other systems potentially could have no signal field in cold environments or twice the field width in hot environments. This could mean your dog fence system may not be able to contain your dog due to limit field width or could correct your dog inside the safety of your home.

Patented Wire Check: Only Perimeter brand dog fence systems feature the ability for the state of the art transmitter to monitor wire input and output automatically. This ability allows the system to perform even with damage to the boundary wire. (No System can function with the wire completely broken.) The field width will remain constant on both sides of a damaged boundary wire due to the power output management built into every Perimeter brand dog fence. Should you experience a catastrophic event resulting in total wire failure your system will give you a constant audible indication of the breach.

Patented Battery Check: Only Perimeter brand dog fence systems monitor the status of your battery every two hours to ensure you know when your dog fence needs a new battery. Other brands offer low battery indication however it only lets you know when the battery dips below a certain output level. The chemical composition of a battery fluctuates over a variety of different operating conditions which could potentially signal a false low battery indication. Perimeter brand systems save you time and money by requiring 3 consecutive low battery triggers to set off the low battery indication. Why not keep your dog safe at home without spending extra money on unnecessary battery changes.

Polycarbonate Collar Receivers: Polycarbonate plastic is a lightweight, high performance plastic which possesses a unique balance of toughness and dimensional stability. Perimeter brand dog fence collars use polycarbonate plastic to make them resistant to damage from dog chews. Polycarbonate is frequently used in situations where safety and performance are a must such as external jet aircraft parts, the space shuttle and many military applications. Why trust the safety of your dog to anything less?

Waterproof Collar Receivers: 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. Have a pool, pond or take your dog to the lake? Take your Perimeter dog fence with you.

Replaceable Lithium Ion Battery Technology: Lithium Ion technology offers three times the gravimetric density of nickel metal hydride technology which provides lighter batteries with increased run times. Replacing batteries not only provides the ability to instantly renew the collars power supply should you forget to recharge it also provides a consistent duration for battery life as opposed to the diminishing lifespan of a rechargeable cell.

Digital Frequency Encoding: Eliminates stray signal interference from neighboring dog fence systems as well as other signal generating devices. In addition to the encoding Perimeter brand pet fences operates on a 7 KHz frequency which in and of itself provides less frequency interference than other dog fence systems operating on more widely used bands.

Most Humane Contact Points: Comfort Contacts by Perimeter 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. Soft conductive rubber contacts allow the contact to remain constant keeping your dog safe at home with utmost is comfort.

Omni Directional Signal Detection: Many containment systems only detect signals coming in from one or two directions with one or two internal antennas. Perimeter brand dog fence systems offer the safety and peace of mind of three internal antennas detecting the boundary signal on three separate planes to provide the most effective signal detection available.

Progressive Correction w/Run Through Prevention: Perimeter brand dog fence systems offer progressive correction which measures time and distance from the collar to the boundary wire. This feature allows the computer collar to know not only how far away it is from the boundary wire but how fast the collar, and subsequently the dog, is traveling. In a fraction of a second the collar can make the necessary adjustments in correction intensity to ensure your dog stays safe at home.

Auto Safety Shut-off: 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. Should this happen they will only have to endure 20 seconds of discomfort; hopefully enough for them to learn their lesson. The system will automatically reset following its removal from the field.

Seamless Warning Tone (Anti-Linger): Perimeter brand dog fence systems avoid excessive battery drain from those dogs smart enough to sit in the warning area until the receiver battery is dead. Perimeter software seamlessly moves your dog from a warning tone to a very low level of correction 1 second after entering the warning tone area to avoid premature battery drain as well as to help promote the seriousness of their boundary. Allowing your dog to spend excessive amounts of time in the warning tone area will condition them to not take the fence as seriously as they should. Additional time in the warning area will promote testing the fence more frequently causing shorter battery life.

Custom Correction Programming (Ultra only): Perimeter is the only brand of do it yourself dog fence system which offers the ability to control the stimulation settings for each dog on the system. This feature is crucial for single dog systems where the dog is older or more sensitive to electronic correction. Five programming options are available for each dog on the system. You may have a small timid dog which requires far less correction than your other large “bull-headed” dog. Perimeter brand dog fence systems give you the ability to custom program each receiver to match the dog’s temperament. Should your dog fence administer the same correction to your timid dog just to keep a stronger willed dog in the yard? That doesn’t sound safe or humane!


Perimeter products are designed and manufactured in the USA. Perimeter Technologies is proud of our heritage as some of the original dog fence industry founders as well as our future as a domestic manufacturer of premium dog fence safety products. Why send your hard earned dollars overseas? Why trust the safety of your dog to anyone less than your fellow pet loving Americans?
Perimeter WiFi Invisible Dog Fence
Although wireless pet fencing has been available for over a decade, technology has gone through little or no changes, which is unusual given the rapid advancements in technology that industries like entertainment and communications have enjoyed. The all new Wire-Free – WiFi Fence employs the hottest micro-chip transceiver set, operating on what has now become a very familiar 802.15 wireless communication protocol used in all the new cool electronic products. New technology makes our lives more convenient, keeps us better connected and now makes owning a dog fence easier and your pet safer than ever before.
Perimeter Technologies has once again advanced a electronic dog fence technologies. They have the best features on all of their in-ground dog fences and now the Perimeter Technologies WiFi fence has to most features of any dog wireless instant dog fence. For many years the only option you had was the PetSafe PIF-300 with a 180 foot radius and dumbed down radio frequency containment area. There are many limitations to a radio frequency being used for pet containment. The area is tine, does not work on steep hills and provides no feedback or control of your dog’s containment receiver collar. Perimeter's WiFi Instant Wireless Dog Fence has taken care of all of those issues. You now have a 200 foot radius, the ability to cover 2.5 acres, the ability to work on steep hills, the ability to adjust your dogs collar on the fly and a warning system should the fence ever fail or if your dog's collar leaves the containment area.
Only Wire-Free uses the latest digitally encoded WiFi signal technology used in advanced wireless communications. Unlike dated fencing technology, the Wire-Free Smart Station and Pet Link collar are both connected by Transceivers – highly integrated signal chips that constantly links the distance between your dog and the Smart Station™. Wire-Free intelligently tracks the location of your dog at all times, reminding her to respect the established boundary safe area, all while communicating critical safety information back to you.
The safety of your dog and the peace of mind for you is what Perimeter Technologies is all about. Know where your dog is at all times and have the ability to keep him safe at all times.
The Perimeter Technologies WiFi fence is the ideal instant wireless dog fence solution. Perimeter Technologies Invisible Fence Compatible Replacement Batteries and Receiver Collars
Perimeter Technologies aftermarket 3.0 volt lithium replacements for the Invisible Fence® brand Powercap® dog fence battery.  The Perimeter batteries are compatible with all Invisible Fence® Brand R21®, R51®, or A12® electronic dog fence receiver collars.  All series are compatible, including Titanium, Platinum, Graphite, and Mink versions.  Pet Stuff Warehouse guarantees the Perimeter replacement dog fence batteries will provide stable power which will last just as long as the overpriced Powercaps from your local Invisible Fence® dealer.
Each year, Pet Stuff Warehouse sells several thousand of these Perimeter dog fence batteries with many repeat customers all over the United States.  They perform at least as well as Invisible Fence® brand Powercaps® and will not affect the warranty on your Invisible Fence® brand dog fence collars.
Why are these Perimeter batteries so good?  The design was personally approved by the former Chief Engineer at Invisible Fence® Company - the same person who designed the original PowerCap® himself.  Additionally, they are built under his direct supervision in a state-of-the-art manufacturing facility in Pennsylvania.  That's right - they're NOT made in China, like Invisible Fence® by Petsafe®.

Perimeter Technologies ComputerReceiver Collar for Invisible Fence® Brand Dog Fence Systems


Replace Your Lost Receiver Collar or Add Another For a New Pet - And Save Lots of Money! Owners of Invisible Fence® Brand Dog Fence Systems: You can now purchase a Brand New ComputerReceiver™ Collar for your system and save a whopping 40-60% over Dealer Prices! On top of that, the Perimeter Brand ComputerReceiver™ collar is More Advanced, with More Options and More Capabilities than the R21™.
The Perimeter ComputerReceiver Collar for Invisible Fence® Brand Dog Fences is 100% Guaranteed to work with your compatible Invisible Fenc®e Brand pet fence system or Pet Stuff Warehouse will promptly refund your money.
Don't spend twice as much for a new Invisible Fence® R21® collar when you can get a better replacement from Pet Stuff Warehouse by Perimeter Technologies.