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PetSafe Wireless Fence Extra Transmitter, Increase Your Existing Wireless Fence Boundary – Pet Containment for Dogs and Cats - from The Parent Company of The Invisible Fence Brand
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Return this item for free
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Learn more
Return this item for free
We offer easy, convenient returns with at least one free return option: no shipping charges. All returns must comply with our returns policy.
Learn more about free returns.- Go to your orders and start the return
- Select your preferred free shipping option
- Drop off and leave!
Purchase options and add-ons
US Dog Collar
Brand Size | Neck Girth (in) |
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One Size | 6 - 28 |
- EXPAND YOUR COVERAGE: Adds an additional circular-shaped wireless boundary up to 1/2 acre to your existing PetSafe Wireless Containment System for increased coverage
- COMPATIBLE WITH ALL PETSAFE WIRELESS FENCES: Stay & Play Compact Wireless Fence, Stay & Play Wireless Fence for Stubborn Dogs, Stay & Play Wireless Fence with Replaceable Battery Collar or the Wireless Pet Containment System
- MOST ACCURATE WIRELESS FENCE: Other wireless pet fences have unreliable boundaries that could correct your dog in his home
- TRUST THE BEST: Our proprietary circular boundary gently guides your dog back to his play area
- SIMPLE SET-UP: With no digging or wire to bury, set up takes just a few hours
- PORTABLE: Great for vacation homes, RV's or camping trips, take this portable fence with you when you and your dog travel (outlet required)
- EXTRA RECEIVER COLLAR NOT INCLUDED: With the purchase of additional receiver collars, this wireless fence allows you to safely contain and protect an unlimited number of pets
- NOTE: Operating range may be affected by a variety of factors including terrain, topography and metal objects
- U.S.-BASED CUSTOMER CARE: Our pet product experts are here to help you and your pet and are available by phone, email or chat if you have any questions
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From the manufacturer

Find your PetSafe Fencing Solution
![]() Wireless Pet Containment | ![]() Stay & Play Wireless | ![]() Guardian GPS | ![]() Guardian GPS + Tracking | ![]() YardMax In-Ground | |
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Customer Reviews
|
4.3 out of 5 stars 14,082
|
4.2 out of 5 stars 8,933
|
3.7 out of 5 stars 36
|
3.4 out of 5 stars 230
|
4.3 out of 5 stars 999
|
Price
| $269.99$269.99 | $294.49$294.49 | $449.95$449.95 | $249.00$249.00 | $254.96$254.96 |
Boundary Size
| Small: Up to 1/2 acre | Small: Up to 3/4 acre | Large: 3/4 acre & up | Large: 3/4 acre & up | Any size: Up to 10 acres |
Boundary Shape
| Circular only | Circular only | Customizable | Customizable | More Customizable |
Dog Size
| 8 lb & Up | 5 lb & Up | 25 lb & Up | 30 lb & Up | 5 lb & Up |
Initial Setup Time
| 1-2 Hours | 1-2 Hours | 1-2 Hours | 1-2 Hours | 1-2 Days |
How To Set Up
| Base unit setup + set radius | Base unit setup + set radius | Base unit setup + draw in app | Draw up to 20 fences in app | Base unit setup + bury wire |
Components
| Collar + Base Unit | Collar + Base Unit | GPS Collar + App + Base unit | GPS Collar + App, Subscription | Collar + Wire + Base Unit |
Best For
| Homeowners, Renters | Homeowners, Renters | Homeowners, Renters | Homeowners, Renters, Travelers | Homeowners |
Add-A-Dog Collar Compatible?
| Yes | Yes | Yes | No | Yes |
Portability
| Indoor power source required | Indoor power source required | At home only | Anywhere will cell signal | At home only |
Connection Required
| Power outlet | Power outlet | WiFi (at setup) + Power outlet | WiFi (at setup) + LTE signal | Power outlet |
Digging Required?
| No | No | No | No | Yes |
Subscription Required?
| No | No | No | Yes | No |
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Can you change the shape of the wireless boundary?
Our wireless fence systems are circular shaped and cannot be changed into a square or rectangle. You can make the circle larger or smaller as needed by adjusting the settings on the transmitter.
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Will this wireless fence create a circular boundary larger than 180-feet across?
You can cover a yard larger than 180 feet in diameter by adding a second transmitter. Using two wireless fence transmitters expands your pet’s play area - just ensure the boundaries overlap by at least 30 feet.
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Can I place the transmitter outside?
No, the transmitter must be placed in a fully-indoor, climate-controlled location where temperatures don’t fall below –10 degrees Fahrenheit or rise above 104 degrees Fahrenheit.
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Why can’t I use this fence with dogs younger than 6 months old?
The age recommendation is based on your dog’s cognitive development. A puppy should be at least 6 months old and consistently respond to basic commands like “come” and “sit” before starting training with a static correction collar.

Saving lives for over 25 years
Since 1998, we've protected over 11 million dogs around the world. PetSafe is the brand to trust when it comes to keeping your dog safe in your yard and wherever you go.
Product details
- Is Discontinued By Manufacturer : No
- Product Dimensions : 13 x 9.5 x 11.75 inches; 4.1 Pounds
- Item model number : IF-100
- Department : Pet Supplies
- Date First Available : July 25, 2008
- Manufacturer : Radio Systems Corporation
- ASIN : B000P7LYPI
- Country of Origin : Vietnam
- Best Sellers Rank: #2,449 in Pet Supplies (See Top 100 in Pet Supplies)
- #2 in Dog Wireless Fences
- Customer Reviews:
Videos
Product information
Item Weight | 4.1 pounds |
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Department | Pet Supplies |
Manufacturer | Radio Systems Corporation |
ASIN | B000P7LYPI |
Country of Origin | Vietnam |
Item model number | IF-100 |
Customer Reviews |
4.3 out of 5 stars |
Date First Available | July 25, 2008 |
Item Package Dimensions L x W x H | 12 x 10.2 x 9.2 inches |
Item Dimensions LxWxH | 13 x 9.5 x 11.75 inches |
Item Weight | 4.1 Pounds |
Brand Name | PetSafe |
Target Audience Keyword | dogs |
Directions | See Manual |
Warranty Description | 1 year limited warranty |
Model Name | IF-100 |
Color | Gray |
Size | one size |
Age Range Description | All Life Stages |
Number of Items | 1 |
Manufacturer | Radio Systems Corporation |
Style | Extra Transmitter |
Breed Recommendation | Small, Medium, All Breed Sizes |
Included Components | Power adaptor, Transmitter, User guide |
Specific Uses for Product | Active |
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PetSafe Wireless Fence Extra Transmitter, Increase Your Existing Wireless Fence Boundary – Pet Containment for Dogs and Cats - from The Parent Company of The Invisible Fence Brand
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Product Description
Add an extra 1/2 acre to your dogs Stay & Play Wireless Fence or Wireless Pet Containment System. For larger or uniquely shaped yards, this extra unit can expand your yard coverage. Large, overlapping circular fields create even more outdoor pet paradise and give your pet more room to exercise, play, and stay safe.
Top Brand: PetSafe
Important information
Directions
See Manual
Legal Disclaimer
Person has to be adult or at least 18 or over to purchase this merchandise
Compare with similar items
This Item ![]() PetSafe Wireless Fence Extra Transmitter, Increase Your Existing Wireless Fence Boundary – Pet Containment for Dogs and Cats - from The Parent Company of The Invisible Fence Brand | Recommendations | ||||
Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | |
Price | -27% $214.95$214.95 List: $294.99 | $319.95$319.95 | $104.95$104.95 | -6% $159.99$159.99 Typical: $169.99 | -11% $79.99$79.99 Typical: $89.50 |
Delivery | Get it as soon as Tuesday, May 6 | Get it May 8 - 9 | Get it May 7 - 9 | Get it May 12 - 14 | Get it as soon as Tuesday, May 6 |
Customer Ratings | |||||
Sold By | Amazon.com | Petco | Pet Stuff Now | JICMJ | Amazon.com |
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find the electric fence system works well for dogs, particularly pit bulls, and is easy to set up, taking only one week to train their pets. The system keeps dogs safe and contained, and they learn boundaries quickly. While the battery life lasts about 10 days and the system holds up well, some customers report issues with the collar not lasting and the wireless range being finicky and spotty. The value for money receives mixed feedback, with some finding it worth the cost while others consider it expensive.
AI-generated from the text of customer reviews
Customers find that the fence panel works well, with multiple customers reporting that the collars function perfectly.
"...Overall though it is a great invention works well for Holly and we don't have any more digging under the house...." Read more
"...System a 4 stars, but for actual use, it is definitely worth 5 stars for performance...." Read more
"...He nearly always gives chase. He is so friendly and happy but he's big and doesn't know he can be scary so when he runs to play with people...." Read more
"...She stays relatively close to the house but in a good way and I can tell she loves the new found freedom to not be on a leash...." Read more
Customers report that the fence effectively keeps their pets contained and safe, particularly noting that their dogs stay within the barrier and don't run through it. One customer specifically mentions that their livestock guardians remain within their protective zone.
"...It has been wonderful , as this also keeps her from wandering off to the neighbors, out to the road, or disappearing out of shouting range...." Read more
"...Overall, I am so glad it has stopped him escaping, but still wish this had not been necessary." Read more
"...great training aid for helping her to understand our boundaries, keeping her safe and the importance of staying in the yard...." Read more
"...While it's fine for larger dogs like Jess, I really can't see an 8 pound dog wearing it...." Read more
Customers find the electric fence easy to set up, with training taking only one week, and one customer noting it allows installation without digging up the yard.
"For ease of setup, I gave the PetSafe Wireless Pet Containment System a 4 stars, but for actual use, it is definitely worth 5 stars for..." Read more
"...Hooking it up was a lot simpler than I made it out to be, all you really hafta do is turn it on & set the perimeter button...." Read more
"...Training the dogs was simple, using the included training instructions. After 3 days, my dog was trained...." Read more
"...More info if you want to read: Very easy to install- just plug in the transmitter unit (indoors- we put ours up in a window ledge), set the..." Read more
Customers report that their dogs learn quickly with this electric fence, particularly noting it as a lifesaver for training young dogs.
"...He is a VERY well behaved dog except when he sees other people or animals that interest him. He nearly always gives chase...." Read more
"...Our dog is a lab mix and very smart and trainable, but we were concerned because with her playful nature as soon as we were outside with her off..." Read more
"...Our 6 month old golden picked up on it in about two days. Barely any training. Only got buzzed once and that's all it took. It's great!!!!" Read more
"...Training the dogs was simple, using the included training instructions. After 3 days, my dog was trained...." Read more
Customers have mixed opinions about the electric fence's value, with some finding it worth the money and noting that batteries are not expensive, while others consider it expensive.
"...Well worth the money and time spent training...." Read more
"...Essentially, these units are useless to you if you have a wireless security system...." Read more
"Works great definitely worth purchasing!" Read more
"...bit expensive, but now I understand that it quality product and not too much to pay to keep him safe...." Read more
Customers have mixed experiences with the fence panel's durability, with some finding it well-made and reliable, while others report that the collars are not made to last and are of poor quality.
"...barrier and our dog has left the perimeter a few times so it is not failsafe; however, he now stays in the yard 99% of the time...." Read more
"...The Collar is still in good shape and we hope the unit last another couple years." Read more
"...Only thing I can say is I wish the collar was a better material...." Read more
"...He is 85ish pounds. He's clumsy but tough. He hits his head on things all the time and nothing seems to hurt him...." Read more
Customers have mixed experiences with the fence's signal quality, with some finding it fantastic and great for containment, while others report that the wireless range is finicky and spotty, and can be blocked by obstacles.
"...When I ran accross this wireless invisible fence system, I saw this as a great alternative to the previuos mentioned fixes...." Read more
"...No issues with Transmitter, works perfectly, even with added computer and wifi near by...." Read more
"...This can cause the transmitter to become unreliable, even shocking the animal while they are inside the zone...." Read more
"...On the flip side, the signal was very consistent on the far side of the house after going through the whole house and our side woods...." Read more
Customers report issues with the battery life of the fence panel, noting that they last about 10 days and can fall out of the collar.
"...The collar does go through some batteries but so far everything seems quite durable...." Read more
"...My dog should have stayed in her yard. But the system failed to work...." Read more
"...Also, as noted above, the batteries die quickly, especially if you leave the system on all the time...." Read more
"...is a low battery indicator on the collar itself and the batteries are pretty cheap here on amazon...." Read more
Reviews with images

This thing really works
Top reviews from the United States
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- Reviewed in the United States on April 27, 2011Style: Wireless Fence KitVerified PurchaseWe have 6 month old golden retriever and a fenced back yard. Our golden began digging under the modular that we live in and no matter what we tried to do to block her she still dug around it, through it, in a new spot etc. The fence was doing it's job already so our alternatives were to build a concrete kennel/run for her, stake her out, or put the invisible fence to work. When I ran accross this wireless invisible fence system, I saw this as a great alternative to the previuos mentioned fixes. We got it in two days and were ready to try it out. We followed all the instructions to get the perimeter set-up (which is an adjustable sized circle)and got down to training. The manufacturer has a month or more training schedule - our golden caught on quickly in just two days (we spent about 6 hours training in total.) We followed the instructions to a tee just at a more rapid pace since she began catching on after just one shock at a level 2. We left the flag markers in place for about 8-10 days and began removing them as directed over three days. By this time the dog (Holly) was used to hearing the beep and knew what would come next if she continued in that direction. It has been wonderful , as this also keeps her from wandering off to the neighbors, out to the road, or disappearing out of shouting range. The adjustable radius is great for containing Holly in a smaller area, such as at a BBQ, away from the pool, kids, etc. This is not a system for a small dog as the collar is bulky - I would say the dog should be at least 25 lbs to support the collar. The system is expandable if you buy additional collars (which is still a lot cheaper then building a fence or concrete run). I can't wait to take it camping with us so Holly can roam freely in her area and not need to be staked down or shut up in the car or trailer. The only down side to this system is that the central unit is not weather proof - so you are advised to place it indoors. This was not an issue for us as we have shop and a pump house, but I can see for some if you only wanted to contain the dog in the back of the house it might pose a problem since the circle size might need to be reduced. The only improvement I can suggest would be to make the unit smaller (it is about the size of a gallon jug) and weather proof, so you could place it in a tree or on a table to get the containment area exactly where you want it (guess you could use the old wire system to do this as well). Overall though it is a great invention works well for Holly and we don't have any more digging under the house.
FYI - for those that think the shock is cruel - I held the collar in my hand and it is not painful, but I can feel it (it is much like the sensation of placing your tongue on a 9 volt battery - not painful)- I think since it is a different sensation dogs react to it. We have kept the level at a 2 for Holly (it goes up to 6, which I would imagine feels like a zap, bnut just like humans some dogs are more or less sensative then others)- but I have only seen her get shocked 4 times, 2 of which I made happen in order to train her to go back inside the circle instead of outside it and 2 of her own mistakes. Holly responds to the sound now and eventually she won't even need the collar on to stay within her boundary.
One year later - still works. Holly (the dog) definately knows where she can roam when the collar is on. We have replaced the battery 5 times, so about every 2 months. There is a low battery indicator on the collar itself and the batteries are pretty cheap here on amazon. We leave the unit on 24-7 becasue it is just easier than worring about openeing a door and having Holly escape without her collar and we have not had any issues. Holly actually wants the collar on, after a bath she goes straight to where the collar is and can't wait for us to put it back on. After the inital training Holly only has gotten zapped one other time and she was chasing a duck - this was about 7 months after being with the collar - she did escape her boundaries although she returned back inside the boundary as well - she is almost full grown so we figured the level 2 was just not as effective as it had been when she was a pup. That same afternoon we upped the level and let Holly test it again, now that she thought she could get outside the boundary area. It worked, she cried out, so we knew she felt it, she immeadiatly returned to the front porch and still to this day if she hears the warning beep she returns straight to the front porch to ensure she does not get zapped again. The Collar is still in good shape and we hope the unit last another couple years.
- Reviewed in the United States on December 10, 2013Style: Wireless Fence KitVerified PurchaseFor ease of setup, I gave the PetSafe Wireless Pet Containment System a 4 stars, but for actual use, it is definitely worth 5 stars for performance.
We adopted a 3 year old mixed breed (30lbs, looks like a hound-mix) who has escaped our 6-foot tall privacy fence by digging under the concrete footer, by chewing a hole and yanking a board loose, and by dashing out the gate. He is an inside dog and we have a pet door, which allows him (and our other dogs) access in and out as they wish. It is almost as if he becomes overcome when he gets a whiff of something and just goes nuts trying to hunt it down.
The third and last time he escaped he was found nearly a mile away across a busy road, which made us finally face that we needed a more drastic approach before our little guy gets himself killed (or one of the other dogs, who like to go with him). So with deep reservations and regret, we overnight ordered one of these systems. Neither of us liked the idea of a shock-collar, but were at a loss as to what else we could do to keep the little guy safe from his own instincts.
It took two of us about 2 hours to set it up. The difficult part, ironically, was the shape of our lot (narrow and deep) and house (three stories) compared to the spherical size of the electronic boundary. In order to allow our dog access to as much of the backyard as possible but not more than the fence, we had to not only change the strength of the field but move the transmitter until he also had access to the front part of the house. He still cannot quite get all the way to the front of the house upstairs but it was the best we could do. The transmitter (which is HUGE) has to sit on a table in our central hallway on the second floor in order to give him the access we wish.
Something I wish we had known before we bought it was that you are not intended to leave the collar on the dog 24/7, but rather to put it on him just when he is being let out. We have conditioned ours to wear it during the day, then we take it off at night when we close the dog-door. Hopefully he will not get raw where the electrodes touch him (that seems to be the concern with leaving it on too long). So if like us, you normally give your dog free run of both house and yard and want to use this to limit escaping it might not be the best option (though if like us you are at your wits-end as to keeping your dog safe, it might be one of your only options shy of an in-ground system).
The electronic part of the collar is large and not suited to small dogs. It looks large on our 30lb dog and he has a very stout 14" neck. I can't imagine putting it on a 10lb dog.
Setting the charge on it: So once we were happy with the field we went to test it. My son-in-law happily volunteered to be the guinea pig. We set it on 4 as that seemed to be the strength recommended for medium sized short-haired dogs (shock settings are 2-6). My son-in-law got quite the shock (he had it across his palm). So we turned it down to 2 (the lowest setting that shocks) before putting it on the dog. When he crossed the line and it shocked him he yelped, reared up and nearly flipped over. It was painful to watch. Fortunately after that he was quite cowed by just the beeping. I've only seen him get shocked one other time and that was sadly in the house.
Unfortunately it made him loathe to go outside at all at first, so that created issues with house-training. But better to have to re-crate train him than to have him escape and get run over. This has improved recently as he has gotten used to his new restrictions and I'm confident he will be fine. At least now he does not have to be leashed indoors in order to keep him from sneaking off to do his business where he should not. The last week I have let him have free-reign while on collar with no issues. But it is an unexpected consequence that other pet-parents should be aware of when considering this system.
Overall, I am so glad it has stopped him escaping, but still wish this had not been necessary.
Top reviews from other countries
- CamilleReviewed in Canada on February 7, 2013
5.0 out of 5 stars Great Product!!!
Style: Wireless Fence KitVerified Purchasei have an 8mth old Great Pyrenees...she is about 90 lbs and still growing... Very strong minded dog and likes to wander and track coyote and deer trails so decided to purchase the petsafe wireless system. have had it now for 3 days and she doesn't want to leave the yard, even when our other large breed dog is out in the pasture with the horses she sits by the gate and waits for him to come back... i think her days of wandering over to the neighbors are done. works great and i highly reccomend this for other pet owners with wandering pets... i was skeptical as to how it would work with an ex-large breed. It only took 2 days about 20 min/day and she stays in the yard... this system has given her the freedom and me the peace of mind that she will be safe and also keep her from the road. Thank you Petsafe for a Great Product!!
CamilleGreat Product!!!
Reviewed in Canada on February 7, 2013
Images in this review
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JcReviewed in Mexico on October 27, 2024
1.0 out of 5 stars No entregaron lo que encargue
Style: Receiver Collar OnlyVerified PurchaseEn la descripción del producto viene una imagen de un perro pequeño y menciona que el collar es para perro de mayor a 5 libras, y el que me llego es para perros más grande, es decir mayor a 8 libras. Este collar es enorme para mi perro, que decepción.
JcNo entregaron lo que encargue
Reviewed in Mexico on October 27, 2024
Images in this review
- Cliff VoutourReviewed in Canada on July 22, 2024
5.0 out of 5 stars Not cheap, but works really well
Style: Wireless Fence KitVerified PurchaseWe wanted a solution that wasn't known to malfunction like the other options listed on Amazon. We've read numerous reports about boundaries getting reset and hurting dogs by turning on when it's not supposed to. Not an issue with this setup and works like a charm!
- HDReviewed in Canada on November 8, 2022
1.0 out of 5 stars Spend the extra money on a high end one instead.
Style: Wireless Fence KitVerified PurchaseThe radius of the fence is entirely inconsistent all the way around. My dog approaches the boundary in the back yard and it beeps but won't stop beeping until he is 10 feet back into the boundary. The front yard appears to work properly. The device is no where near metal devices or electronics. It is set up in the window at the back of the house. My yard is flat, and I have a single story home. I feel like I wasted 500 bucks. If I knew how much it would suck, I would have saved my pennies and opted for those fancy ones around 1500 bucks instead. I have zero piece of mind with this product. Additionally, the flags provided are WHITE, not exactly useful in Canada where it snows half the year.
*Update about 4 months later*
First battery is dead, and what do you know, you can't just buy and replace the battery, you have to buy their stupid "SPECIAL" battery. They gotta keep that revenue in somehow I guess. So I was forced to give them more money and after following their youtube instructions for replacement, it didn't work. I then completed a second trouble shooting video along with my spouse and it still will not work. Never buy this, I regret wasting my money, my dog almost got hit by a car because of this collar. NOT WORTH LOSING YOUR PET - DO NOT BUY.
- Amanda ArseneaultReviewed in Canada on October 14, 2024
5.0 out of 5 stars Love this product
Style: Receiver Collar OnlyVerified PurchaseThis is my third replacement collar. Truly love the whole system, my dogs feel safe and I feel safe knowing they are staying in their boundary.