Dogtek EF-4000


  • Adjustable warning and boundary
  • Small collar size
  • 8 correction levels


  • 1 acre capacity
  • No collar low battery warning


Retail Price


Our Price

Out of Stock 149.95

Availability: In Stock

Orders before 1pm ship same day

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Out of Stock - Dogtek EF-4000 Overview

Out of Stock – Summary: Great Value But Limitations

The EF-4000 is the base model in the Dogtra lineup. It has a particularly impressive feature set for it’s price, with independent correction & boundary zones, a small collar, and 8 correction levels.

But, there are limitations. The system can only contain 2.5 acres (1,500 feet) area and the collar has no low battery alert.

Adjustable Boundary Warning & Correction

Dogtek gives you control over both the boundary warning distance, and the boundary correction distance. You can independently set these boundary distances which lets you tailor setting to your dog’s temperament and your yard’s configuration.

Independent Correction

Dogtek also lets you set the correction levels on each collar independently, allowing you to accommodate dogs of very different sizes and temperaments. The range of correction lets you

Dogtek EF-4000 collar

Small & Light Collar

The EF-4000 has one of the smaller and lighter collars for regular sized dogs. Despite the small size it has eight correction levels. But, it lacks a basic low battery indicator.

8 Correction Levels

The EF-4000 has eight correction levels ranging from very-low to medium-high. The correction levels give enough range to suit most dog, although very large or very stubborn dogs will need a high powered collar such as the PetSafe Stubborn.

The correction levels are changed by pressing a tiny button in the battery compartment. The button placement is inconvenient, and the size of the button is so small it requires you to use a pen to press. However, you will likely only use the correction level adjustment a few times when you are first training your dogs and will thereafter leave the correction level unchanged.

No Low Battery Warning

The EF-4000 lacks any low battery warning on the collar. This means the battery can die on the collar and because it has no status light or other indicator, you will have no idea that the battery has gone flat. The only solution is to either change the battery early (say every three months), or test the collar with the supplied tester tool regularly as it approaches the end of it’s life. Either way it is an inconvenience, and we are surprised the collar lacks this basic function.

Long and Short Prongs

The system comes with both long and short collar prong attachments, so can be used out of the box with both long and short hair dogs. Providing both types of prongs on this entry level system is a generous extra usually only seen on the higher priced systems.

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Disposable CR2 Battery

The collar is powered by a disposable CR2 battery, requiring you to keep buying new batteries to keep the collar in working order. But, the battery is a non-proprietary battery that is available at most big-box drug-stores and is moderately priced at around $5, which makes it a lot more economical than the proprietary batteries used in the Petsafe, Perimeter Technologies, and Invisible Fence dog fence systems.

Changing the battery is a minor chore, requiring four screws to be undone. However, with a battery life of around 4 months, changing the battery is a relatively infrequent occurrence.

Lightweight & Small

The EF-4000 collar is one of the lighter and smaller full-powered collars. The collar will comfortably fit any dogs over 12lbs. For dogs, under 12 lbs a dedicated small dog system with a micro-collar such as the PetSafe Little Dog system is necessary.

Cloth Strap

The collar fastens using our preferred cloth strap with a quick-snap buckle. Additionally, the strap slides around the outside of the collar so can be easily removed for washing or replacement.

Dogtek EF-4000 Transmitter

Transmitter with Adjustable Boundary

The new Dogtek EF-4000 transmitter allows you to adjust both the boundary correction distance and the boundary warning distance. This allows you to have a completely custom boundary that suits the needs of your dog and your layout.

Adjustable Boundary Warning & Correction

The Dogtek EF-4000 (and it’s big brother the EF-6000) let you adjust both the boundary warning distance and the boundary correction distance. This gives you a lot more control in your boundary set up and allows you to find a setup that will suit your dog.

You can for example set a wide boundary tone to trigger 10 feet from the boundary wire, while having the static shock correction start only 3 feet from the wire, giving a timid dog plenty of warning zone buffer. Conversely, for a more hard-headed dog you could have a small warning zone preceding the correction zone.

2.5 Acre Capacity

The EF-4000 transmitter can only power 1,500 feet (2.5 acres) of boundary, making it one of the weakest containment system.

For a higher capacity system, consider the Dogtek EF-6000 (up to 5 acres), the Petsafe Ultrasmart (up to 25 acres), and then SportDog SDF-100A (up to 100 acres).

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Dogtek EF-4000 Wire
Boundary Wire Gauges

Boundary Wire & Accessories

The basic system includes 500 feet of 20 gauge boundary wire, 50 training flags, and 3 wire splices. It also includes a collar tester.

Direct Burial Rated Wire

The Dogtek Wire is direct burial rated, and is PET coated. PET coated wire is more resilient when buried than the more common PVC coated wire that rots out in the ground and degrades with exposure to sunlight.

500 Feet of 20 Gauge Wire

The EF-4000 system includes 500 feet of 20 gauge boundary wire. It also includes 50 boundary flags for marking the fence boundary while the dog is in the training phase. The wire and flags are enough to cover one-third of an acre. Extra boundary kits can be added to expand the system up to 2.5 acres.

Area (acres) Wire Required (feet)
1/3 500
1 1,000
2.5 1,500

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Optional Professional Gauge Wire

Basic 20 gauge wire can be upgraded to thicker 18, 16, and 14 gauge wires. 14 gauge wire is considered professional grade and is what is typically used on a professional Invisible Fence installation. With the 14 gauge gauges of wire, both the wire and protective jacket are four times thicker than standard wire. This makes the wire stronger, more durable and less to break.

For small installations, upgrading the wire is an easy low cost way to massively reduce your risk of wire breaks. A small additional cost reduces the likelihood of you needing to hunt for wire breaks. For very large installations, the thicker gauges of wire are useful because of their superior transmission characteristics and because of the reduced probability of developing a wire break, but the cost of upgrading large amounts of wire are significant.

Dogtek One Year Warranty

One Year Warranty

The Dogtek EF-4000 come with a full one year warranty, covering both parts and labor. We find Dogtek systems to be well made, and rarely needing service. But where needed, warranty claims are adequately and promptly addressed.

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Dogtek’s EF-4000 is a curious blend of high-end features and glaring omission. The system outperforms systems double the price in some respects, with complete control over both the boundary and correction distances. The system collar is lightweight and has eight correction levels.

But, the system also has some significant limitations. The range of the system is a pitiful 2.5 acres so should only be used with suburban lots. And the collar has not low battery indicator so needs to be checked at least weekly.

If you can live with these limitations, this system is a steal at $150.

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Dogtek EF-4000 Manual

Dogtek EF-4000 Manual

Download the Dogtek EF-4000 Manual (PDF).

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Model Dogtek EF-4000
Type In Ground
Collar Battery Disposable – CR2
Correction Levels 8 Levels
Beep Only Training Mode Yes
Collar Warning beep Yes
Collar Vibration No
Independent Correction Levels Yes
Collar Dimensions 2.3” (L) x 1.3” (W) x 1.6″ (D)
Collar Weight (with band) 3.4 ounces
Collar Weight (without band) 2.4 ounces
Collar Neck Size 7″ – 26″
Collar Water Resistance Waterproof
Collar Fit Test No
Maximum Number of Dogs Unlimited
Minimum Dog Size 12 lbs
Minimum Age 6 months
Maximum Containment Area 2.5 acres (1,500 feet)
Boundary Width 0-10 feet (adjustable)
Control Box Dimensions 4.5″ (L) x 3.6″ (W) x 1.7″ (D)
Control Box Power Source Wall Outlet (110V)
Control Box Battery Backup No
Indoor Pod Compatibility No
Outdoor Pod Compatibility No
Included Boundary Wire 500 feet + 3 wire Splices
Included Boundary Flags 50
Training Materials Manual
Other Wire Break Tester tool
Package Dimensions 16″ (L) x 10″ (W) x 2.5″ (D)
Package Weight 4.0 lbs
Warranty One Year

FREE Expert Advice

When you call us, you will talk to an experienced expert.

Containment Guarantee

Your dog will be completely contained to your satisfaction within 30 days, or we will give you a full refund. That is a better deal than you would get from a $2,000 invisible fence. You have nothing to lose.

FREE Dog Fence Guide

experts guide

The PetSafe Ultrasmart come with a FREE copy of our Dog Fence Experts Book on installing a dog fence and training your dog (instantly downloadable in PDF form). The book has 90 pages of great information and tons of illustrations to make installation easy, and training effective. It will save you hours and get you complete containment faster.

You get the book immediately with your purchase. Your order confirmation email will include an instantly downloadable copy of our book. Value $24.95.

30 Day Easy Refunds

easy returns

If you are unhappy with your purchase for any reason you can return your system within 30 days for a full refund of your purchase price. Getting a refund is easy, just email us at or call on (888) 936 – 4349.

Our returns are easy and hassle free:

  • It is no problem if you used the system, that was the point! We will still take it back even if there is some wear-and-tear
  • Did you bury the wire? No problem, we will still take it back. (If you can’t or don’t want to dig the wire back up, we will just charge you the regular price for the wire you kept)
  • The 30 day period starts from the time you receive the package so you have plenty of time to do the installation and training. If you need a little extra time, let us know.
  • The only time we don’t take returns is if it is well after the 30 days, or the unit is seriously damaged.

FREE Wire Break Kit

wire break kit

RF choke. The RF choke causes the dog fence boundary wire to make a noise that you can hear on any AM radio. Simply follow the boundary wire and use your radio to listen for the point where the noise becomes weaker and there you will find the wire break.

To fix the break, the kit includes extra wire, two wire nuts, RF choke, and two waterproof capsules to keep your splice watertight. Value $14.95.

Free Fast Shipping

Shipping within the continental US is free.

Orders placed before 1pm EST ship out the same day.

12,000 Happy Customers

We had more than 10,000 happy customers last year, and are hoping to have even more in 2012. We understand how important it is to keep your dog safely contained, and understand the trust you place in us when you make an order. We want to make containment as easy as possible. We value your business, and we want you to refer your friends.

Low Price Guarantee

low price guarantee

We strive to have the lowest prices of any PetSafe authorized retailer. If you find any of our products at a lower price from an authorized retailer, please let us know and we will be happy to match the price. For a price match, call us on (888) 936 – 4349 or email

PetSafe Authorized

PetSafe Authorized

We are a PetSafe authorized retailer. This means you are guaranteed the full manufacturer’s warranty, and a brand new system. Beware of unauthorized retailers that sell grey-market systems. Systems coming from unauthorized retailers do not receive a warranty.

Family Owned

Family Owned

We are family owned and operated. We know the only way a small business like ours can prosper is by providing exceptional service at an exceptional price.

We know you can give your business to Wal-mart, Amazon, or anyone on the internet. So we will work harder to get your business. And we work harder after the sale to make sure you have a great experience and tell your friends.

Confused? Have Questions?

If you have any questions, comments, or concerns don’t hesitate to call or email us.

We will treat you like our neighbor. No sales pitch. No spam. No obligation. Just honest to goodness advice from the experts.

Our Most Popular Pages

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{ 13 comments… read them below or add one }

Tabetha June 11, 2015 at 2:53 pm

I have a 65lb German Shepard mix. He responds well to correction and we put in an underground system a few weeks ago. Unfortunately we did not realise we purchased a terrible system that was very inconsistant and poorly made. But before we realised it was the system at fault we purchased and installed 300ft of very quality 14 gauge wire around our 1/3acre lot. Is there any way we can purchase this system without the wire? Will it be cheaper this way? Please let me know as soon as possible. Thanks.

ADMIN – Hi Tabetha. Yes. You can keep your existing Boundary Wire (provided there are no wire breaks in the perimeter loop) and upgrade your transmitter and collar to a new system. Simply, unplug the old transmitter, connect the new transmitter, and test the collar with the Test Light Tool on your new electric dog fence system. Have you looked at the PetSafe YardMax PIG00-11115 electric dog fence?

Danny May 30, 2015 at 8:19 pm

I’m currently trying to find an option for shielding sections of the wire to allow my dog to pass into certain areas of our yard. I know you recommend twisting the wire upon itself to cancel the signal, but I’m looking for alternative methods since the twisting method isn’t going to work for me. Do you have any recommendations for types of shielding that are successful in blocking the signal for my dog to pass through unaffected? If you don’t have that information, do you know what frequency the signal radiates at, so I can find suitable shielding myself?

ADMIN – Hi Danny. I’m sorry, but we do not have any recommendations for shielding sections of boundary wire. This is not the “Best Practices” for installing our electric dog fence systems. Please visit the DogFenceDIY “Planning, Installation and Layout” page to view some sample dog fence layouts.

Jim April 27, 2015 at 11:21 am

I have a 45 lb Lab/Blue Heeler mix. She is very intelligent and loves to learn new commands. She is quite stubborn and can be reactive/territorial though so my first worry is about the potential for run-throughs. My second concern is that we live on a lake and I still want her to have access to the water as she LOVES to swim. Will I be able to safely bury the wire in the sand and run it out to the water with a garden hose or some type of piping? The yard itself is quite small and narrow. With the beach included it is right around 1/2 acre. Is the EF-4000 a good option for me?

Thanks for your time.

ADMIN – Hi Jim. Unfortunately, the Dogtek EF-4000 Electric Dog Fence is not in stock at this time. Have you looked at the PetSafe YardMax PIG00-11115 electric dog fence? The YardMax in-ground dog fence has run-through prevention and a rechargeable collar. The YardMax collar is also waterproof. Yes. We recommend running the boundary wire through PVC pipe or a garden hose to protect the wire from external damage. You will need 1,000 feet of boundary wire to contain your dog in a 1/2 acre perimeter loop.

Shauna February 18, 2015 at 10:25 pm

We have had our system for about 4 months now and it has been amazing! Both our lab/short hair mix and our short hair/heeler mix respect the boundaries. Recently a connection came undone and the wire break alarm sounded. We fixed the problem, the alarm will not stop. We checked all 1200 feet of wire (luckily we haven’t buried it yet!) then replaced all of the connections, the wire break alarm is still going off.

does anyone know….
Do I have to buy the capability (RF choke) of using the AM Radio to find the break? Or is this something the system is already set up to do? Also are there a limit to the amount of splices a wire can take (I think we have about 6 in about 1200 feet of 20 gauge wire)? Are there any other reasons the wire break alarm would continue to sound?

ADMIN – Hi Shauna. I’m sorry to hear about your Dogtek EF-4000 Electric Dog Fence transmitter. Why do you have so many splices? Yes. I would check all six splices. TO MAKE A SPLICE: Strip approximately 3⁄8 inch of insulation off the ends of the boundary wires to be spliced. Make sure the copper of the wire is not corroded. If the boundary wire is corroded, cut it back to expose clean copper wire. Insert the stripped ends into the wire nut and twist the wire nut around the wires. Ensure that there is no copper exposed beyond the end of the wire nut. Tie a knot 3 to 4 inches from the wire nut. Ensure that the wire nut is secure on the wire splice. Once you have securely spliced the wires together, open the lid of the gel-filled splice capsule and insert the wire nut as deeply as possible into the waterproof gel inside the capsule. Snap the lid of the capsule shut. For proper system performance, the splice connection must be waterproof. Note: If your splice pulls loose, the system will not function. Make sure your splice is secure.

Joe Boyer February 14, 2015 at 7:31 pm

I am trying to install the fence but am having a hard time figuring out how to plug the wire into the green receiver on the transmitter. Any advice?


ADMIN – Hi Joe. Is your wire damaged? If not, simply strip 3/8 inch of the wire insulation and unscrew the 2 little screws in the green piece and then clamp it down. Then, plug in the EF-4000 in-ground dog fence transmitter. What is the size of your pet containment area?

MarMill February 4, 2015 at 10:51 pm

We have a 90lb german shepard and am looking for a system to contain her to one section of the yard while we are away during the day. (We are unsuccessful in getting her to go potty in one area when she’s left alone.)
The area would be 30ft x 40ft. We would only need to run cable on the one 30ft side, plus the one side of our lower deck.. about another 24ft.
Although she is a large dog she responds well to soft corrections.
Would the Dogteck EF4000 work for our needs?

ADMIN – Hi MarMill. The EF-4000 is the base model in the Dogtra lineup. It has a particularly impressive feature set for it’s price, with independent correction & boundary zones, a small collar, and 8 correction levels. But, there are limitations. The system can only contain 2.5 acres (1,500 feet) area and the collar has no low battery alert. The PetSafe YardMax PIG00-11115 in-ground dog fence has run-through prevention. The dog cannot run through the fence no matter how far they go. The Single-sided Boundary Layout can create a single sided boundary. For example, if your loop is 100 feet in a circle, you can only run 50 feet of twisted wire back. This install is very popular with people who live in a rural setting and they want to protect their dog from running out onto the freeway. You simply run a long length of twisted wire from the wall transmitter out to the road. Create a long, skinny loop of boundary wire, remembering to keep the parallel sections a minimum of 6 feet separated to avoid the wires interfering with each other. The key for success of this installation method is run your loop far enough along the road so that your dog doesn’t run around it.

Meredith November 25, 2014 at 8:57 am

We have two dogs. One a German shepherd mix, she weighs about 60lbs and a leopard cur that weighs about 45lbs. Would this be a good buy for our situation? We have one dog that has got out of the yard and killed 20 of our neighbors chickens. We have a kennel fence area, but it’s not big enough for them to run. We live on a 1 acre lot.

ADMIN. Hi Meredith. The Dogtek EF-4000 Electric Dog Fence collar might not have enough power to redirect the dog that is getting out of your yard and killing chickens. Therefore, I would recommend the PetSafe Stubborn Dog Fence. The PetSafe Stubborn collar at full strength is approximately 50% stronger than a standard correction collar. This makes it useful for dogs with a low pain sensitivity (guardian breeds) and very large breeds.

Mandi January 15, 2014 at 3:44 pm

I have a bulldog very hard headed and a chain link fence who after years of living here he had started going under the fence is there a way to set the fence in a semi circle ? Can you adjust the boundaries?

ADMIN – Hi Mandi, yes, you can run the wire in a semi-circle for the outside boundary. Remember that the wire must be in a loop though.

Goran December 2, 2013 at 7:14 am

I have a 2 year old female beagle.Is it a good system for my dog and is it that collar waterproof?
Sorry for my bad english and thanks for any help.

Penny March 13, 2013 at 2:54 pm

I recently purchased the DogTek EF 4000 from Ebay. I have 2 dogs, a border collie and small dog about 19 pounds. I paid a handyman to install the system, which cost me over $300.00. The border collie is so smart that after she got shocked once, she just jumped over. I can’t change the settings because my back yard width is only 12′ tapering to 8′. It is too narrow because the warning beep goes off 1″ on each side. The small dog cannot wear the collar because it slides & doesn’t make contact. I adjusted it as tight as possible. Uninstalled 48 hours later-cost $35.

I am able to return the EF4000 less cost of wire & flags all chewed up. I ordered the additional collar on Ebay from another company. They will not return item because it is over 14 days. Loss of $75.00. I had read reviews and no one ever mentioned the above problems. Out of pocket expense is over $400. If there is a guarantee on the product, I should be reimbursed for the installation & the additional unused collar.

ADMIN – Hi Penny,

Sorry to hear you had such a bad experience. However, I think the problem you describe is not a problem with the system, but rather due to the system being poorly suited to your property, and due to lack of training.

Electronic dog fences, generally need at the very minimum 3 feet of correction zone on either side of the boundary wire, particularly during the training phase to keep the dog contained. This makes them unsuitable to very small yard. In anything less than 15′ x 15′ (at the very minimum), the system will end up making too much of the yard out-of-bounds to be useful. With your yard being so narrow, it isn’t a good candidate for any kind of dog fence system.

The systems also requires you to train your dog for the system to work. From your description of what happened to the collie and this all happening over 48 hours, I presume you skipped that step.

While I am sympathetic to your plight, to be out the money and not have your dogs contained, I am not sure why you are reaching out to us. While our returns policy is very generous it doesn’t extend to folks who aren’t our customers. I would suggest you follow up with whomever you purchased your system and whomever gave you bad information on the system suitability and training.

Megan September 10, 2012 at 8:05 pm

I have a lab/husky mix and she is 58 lbs. I have a fence she keeps jumping that is only 49 ft long (4ft high). We have an older fence that came with the house that she does not jump and that is 4.5 ft high. I need advice on which dog fence to buy to stop her from jumping. Thanks.

ADMIN – Hi Megan,

I’d recommend the Dogtek EF-6000 fence for your Lab mix. You can run the wire along the fence, either on the ground or attach it to the fence. With 2 or 3 training sessions, your dog should not be able to jump the fence any longer.

Kristen June 27, 2012 at 10:14 am

Any new info on this product? I am considering purchasing this brand of fencing, but this review is the only one i can find and it is very old. Thanks for any help.

ADMIN – Hi Kristen,

We continuously update the reviews, so this review is the latest iteration of the fence and reflects everything we have learned about the fence. It is a reliable system with a lot of features, but also a lot of omissions. It’s a good fence if you can live with the limited range, and the water-resistant only collars.

Steve November 5, 2010 at 3:52 pm

I bought this fence 2 months ago, it works very good with my dog.

ADMIN – Hi Steve,

Great to hear. Thanks for the feedback.

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