Rating: 4.2 Reviewed by Debbie
What sets the Innotek SD 2100 Rechargeable In-Ground Pet Fencing System apart is that it offers high end features at a very affordable price.
This system is the least expensive underground dog fence on the market that offers a rechargeable collar. Along with that you get a solid transmitter that’s powerful enough to cover up to 25 acres and comes with a built in battery backup.
With more of the essentials and a reasonable price point, the SD 2100 is definitely a step up from Innotek’s entry level containment system, the SD 2000.
Innotek SD 2100 Rechargeable In-Ground Pet Fencing System
Innotek was acquired by PetSafe a number of years ago and that merger gave Innotek the backing of PetSafe’s well trusted name and long standing history with quality pet products.
With safety and convenience at the forefront, Innotek pet containment systems are some of the most reliable in their price bracket and the 2100 is a good example of that.
Features of this Innotek underground dog fence:
- 3 progressive levels of static correction plus a beep only option for training
- Good for dogs 10 lbs and up
- Can contain an unlimited number of dogs providing they each have their own receiver collar
- Rechargeable receiver collar
- Low battery warning
- Charge reminder for collar
- Run Through Prevention increases the intensity of the static correction as your dog gets closer to the fence line
- Over Stimulation Protection automatically stops the electric stimulation after a maximum of 60 seconds
- Reliable transmitter with a built in battery backup
- Can cover up to 25 acres with additional dog fence wire
- Audible and visual wire break alarms
Innotek offers a 1 year warranty during which time they guarantee that it will be free from defects in material or workmanship.
After the warranty expires they will replace any component for a ‘non-refundable service charge’ and that means that you’ll pay only about 30% of the full retail price. Along with that shipping is free and the replacement item has a 90 day warranty.
Everything that you need to get this in-ground fence up and running comes in the box.
Here’s what you get with your innotek 2100 fence kit:
- Innotek transmitter with power adaptor
- SD 2225 Receiver Collar fitted with 1/2″ long probes
- 1 set of 3/4″ probes
- Plastic training probes
- Test light tool
- 500 ft. of 20 gauge Boundary Wire
- 50 Training Flags
- 2 Waterproof Wire Splices
- Instruction Manual and Training DVD
- Mounting hardware
First Impressions Of This Innotek Underground Dog Fence
Overall the Innotek SD 2100 is a dependable system that gives you lots of bang for your buck. It’s definitely a solid option if you have one or more dogs of the same size and you’re in the market for a affordably priced DIY dog fence.
But there is 1 situation where I wouldn’t recommend this in-ground fence:
If you have more than one dog and they’re different sizes or temperaments.
Because you set the correction level on the transmitter, not the collar, every dog on this system gets the same level of electric stimulation; there’s no way to tailor the correction level to each individual dog. So your easier to train dog will end up with the same static correction level as your less compliant furry friend and that’s not ideal.
But for the average dog the 2100 is a reliable system that has everything you need in an underground fence for dogs, including features often offered only at a higher price point.
What Dog Lovers Have To Say
Without a doubt the thing that a lot of users love most about the SD 2100 is how effective it is at keeping their dogs safe and secure in the yard. Whether it’s used on a 15 lb Shih Tzu or a 120 lb lab this in-ground fence does the job.
What dog lovers especially liked:
- Rechargeable collar
- Covers up to 25 acres
- Completely customizable to any shape and size so will fit your yard perfectly
- Clear, well defined boundary
- Run Through Prevention
- Over Stimulation Protection
- Low battery warning light
- Built in battery backup
- Audible and visual wire break alarm
- Can contain an unlimited number of dogs as long as they’re all around the same size and temperament
There’s a lot to like about this fence so the complaints were few and far between.
Here’s what some dog lovers didn’t like:
- The actual beep of the collar is quiet and that made training some dogs a bit more difficult.
- May not be strong enough for really stubborn dogs.
- The collar takes a long time to recharge.
- The transmitter makes a humming noise when it’s recharging the collar.
But the vast majority of people who have the Innotek SD 2100 say it’s a dependable in-ground dog fence that gives good value for your money.
When compared to its predecessor, the SD 2000, this fence costs about $35 more. But features like a rechargeable collar, low battery warning and built in battery backup more than make up for that price difference.
Tack on the ability to cover up to 25 acres and essential safety features like Run Through Prevention and Over Stimulation Protection and the SD 2100 is definitely worth some serious consideration if you’re looking to spend less than $200.
Installation Details For The Innotek SD 2100
The beauty of this in-ground dog fence is that you can completely customize your containment area and make it any shape you want.
Granted, you have spend some time and put in some effort to get this fence up and running but that’s the case with any in-ground fence; the SD 2100 is no more or less difficult to install than similar models.
While I’m won’t go into detail about the installation process here, I do want to talk about one of the major components — the transmitter.
This Innotek dog fence transmitter has more controls than the average transmitter but the vast majority of users say it’s not hard to set up.
After plugging your transmitter in and turning it on you’ll see an indicator light that tells you:
- Your system has power
- Your boundary loop is intact
Indicator lights are an important feature to look for in an electric dog fence because they tell you that everything is working before you let your dog out.
The features on this fence will let you do that without walking outside — just take a peek at your transmitter.
Lifting the front cover reveals the following controls:
- Field Width Adjustment: This control sets how close your dog can get to the boundary wire before their receiver collar activates. With the SD 2100 that distance can be adjusted from about 1 foot all the way up to about 12 feet.
- Field Size:This is set according to how much wire you’re using.
- Stimulation Level Switch: Sets the level of static correction your dog receives. With most electric dog fences you set the level of static correction on the collar itself but with the 2100, the level of static correction is adjusted on the transmitter using this switch.
In addition to those controls the SD 2100 also has audible alarms to let you know when:
- There’s a loss of power to your transmitter
- You have a break in your boundary wire
- Your transmitter is operating on battery backup
Audible alarms are an excellent way to let you know of any issues with your in-ground fence and go a long way to making you feel confident that your system is working properly.
2 other features of this underground fence transmitter:
- Battery Backup: If the power goes out your fence stops working — it’s as simple as that. The good news is that the battery backup on this in-ground fence keeps the 2100 running even if there’s a power outage.
The bad news is that in order for this system’s battery backup to work you have to install 8 AA batteries. Many people said that the batteries have to be changed quite often and that makes using this particular feature quite expensive over time.
- Charge Reminder: Allows you to set a 30 or 60 day reminder to check the charge on your dog’s electronic receiver collar. Because the collar itself has a low battery warning light most people didn’t bother to set this reminder.
What Do You Need To Know About The Innotek SD 2225 Collar?
The Innotek SD 2225 collar weighs in at about 3.5 oz and fits neck sizes of 8″-21″.
Although the manufacturer says it’s good for any dog over 5 lbs most people who wrote reviews about this underground dog fence said that the weight and clunky box style of the receiver unit make it too uncomfortable for any dog under about 10 lbs.
The SD 2225 is rechargeable and that’s one of the things people love most about this collar. There’s no on/off switch — once you take the collar off the charging cradle a green light tells you it’s fully charged and good to go.
Unfortunately the rechargeable battery is made out of nickel metal hydride and compared to the lithium ion battery that most rechargeable fence collars come with the nickel metal hydride battery has 2 downsides:
- It takes longer to charge
- The charge doesn’t last as long
Because it takes between 12-14 hours to fully charge most people just leave it on the cradle overnight. The average charge lasts between 2-3 months and there’s a low battery warning light that lets you know when it’s time to charge the SD 2225 dog collar battery.
The strap itself is made out of cloth and closes easily with a snap type buckle. It also has a reflective stripe on it which is good if your dog has dark hair or likes to play outside at night.
Most people say the strap’s cloth material is very durable but if it does wear out you won’t have to replace the entire collar because you can simply transfer the receiver unit onto any non metallic collar of your choosing.
The manufacturer says it’s fully waterproof but I’d call it more water resistant because while it’s OK to get it wet Innotek customer service tells me that submerging it for any length of time could damage the receiver unit.
The stainless steel contact points are what deliver the static correction to your dog and out of the box this Innotek dog collar is fitted with 1/2″ probes. But if your dog is of the longer haired variety a set of 3/4″ probes is also included in the fence kit.
The collar offers 3 progressive levels of static correction including a beep only option that’s ideal for training.
One of the things I don’t like about the lower priced Innotek in-ground fences compared to other brands in the same price range is that they don’t offer as many levels of static correction. But at least the 2225 has progressive static correction which means that the closer your dog gets to the boundary wire the stronger the electric stimulation gets.
Before we go on I want to reiterate a couple of important points:
- Because you set the correction level on the transmitter and not on the collar itself, every dog on the 2100 in-ground system will get the same level of electric stimulation.
This is important if you’re going to be using this system with multiple dogs, especially if they’re different sizes and temperaments because it means that your more compliant dog will be getting the same level of static correction as your hardheaded buddy.
- Despite having 3 levels of static correction this system might not be strong enough for really large or very stubborn dogs.
But as I’ve already mentioned, most people who wrote a review on the SD 2100 were able to find an effective level of static correction for the average dog.
2 important safety features of this Innotek receiver collar:
Run Through Prevention:
- Designed to ensure that your dog won’t escape the containment area without receiving the maximum level of static correction
- The closer your dog gets to the boundary wire the stronger the static correction becomes
Over Stimulation Protection:
- Guarantees that no matter what, your dog will never receive a static correction for longer than 60 seconds
- It’s not a continuous 60 seconds. The receiver collar pulses on and off in 10 second increments which means your pet’s receiver collar will give 10 seconds of electric stimulation followed by 10 seconds of rest and this cycle repeats itself 3 times for a total of 60 seconds
- After 60 seconds has passed the electric stimulation stops automatically
Dog Fence Accessories For This Innotek Rechargeable Dog Fence
Dog Fencing Supplies:
PetSafe Wire and flag kit – PIG00-13769:
The SD 2100 comes with enough supplies to cover about 1/3 of an acre. This wire and flag kit contains everything you need to expand that coverage to about 1 acre.
Tip: Finding a break in your wire can be a big hassle and the 20g wire that’s included in this fence kit is quite thin and fragile. To decrease the chance of wire breaks a lot of people upgrade to heavier dog fence wire at the time of purchase.
If you’d like to upgrade your wire you can check the details for 16g wire here.
The chart below tells you approximately how much total wire you’ll need. Keep in mind that the amount will vary depending on how much twisted wire you use and your layout.
Dog Fence Staples:
If you don’t want to bury your dog fence wire underground you can also secure it above ground.
Dog fence stapes are an ideal way to secure your wire to either an existing fence or to the ground.
Tip: All the dog fencing supplies you need can most likely be purchased at your local hardware or home improvement store and doing it that way may even save you a bit of money.
PetSafe Boundary Flags – RFA-2:
Your fence kit contains 50 flags which is enough to cover about 3/4 of an acre during the training process.
Should you need to cover a larger area, each RFA-2 package contains 50 flags.
Innotek Replacement Collars:
Innotek SD 2225 Collar:
This fence has no other compatible collars so if you have more than one dog this is your only choice.
Consumer reviews say this Innotek dog fence collar is good for any dog over 10 lbs.
Here are some other dog fence accessories to consider:
PetSafe Surge Protector – LP-4100:
- Protects your transmitter from damage that can be caused by lightning-induced power surges.
- Highly recommended if you live in an area prone to lightning strikes and electrical storms.
PetSafe Wire Break Detector – RFA-450:
One of the most frustrating things about an underground dog fence is finding a break in your boundary wire.
This wire break locator kit contains everything you need to make it easier to find a break in your wire.
Electric Fence Dog Training
- Fact: Proper training is the most critical aspect of any electric dog fence.
- Fact: Improper training is the #1 reason that electric dog fences ‘fail’.
Because training is so important, I’ve devoted an entire article to the training process but before you head over there I want to make you aware of one thing that’s different about training with the Innotek SD-2100.
In order to use the SD 2225 collar in the beep only mode you have to replace the metal contact points with the plastic training probes which are included in your fence kit.
Once your dog has learned to retreat to the Safe Zone of the yard whenever they hear the warning beep you can put the metal contact points back on and introduce the static correction.
The rest of the training process is as I’ve described in the training article and given the importance of training, if you’re seriously considering an electric dog fence this is one article you shouldn’t miss! 😉