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Ultrasonic Handheld Dog Trainer


Watch the Video
  1. Overview
  2. Videos
  3. Dog Training Tips
  4. Comparison
  5. Specs
  6. Q & A
  7. 90 Day Guarantee

Does your dog go nuts barking at the front door?

Does he bark when people pass by the window?

Does she dig holes all over the yard, or chew on things she shouldn’t?

Nodding your head yes? OnGuard can be your best friend’s new best friend.

Oh Behave.

All dogs are good, but they are even better when trained.

Your dog wants to be good, they just don't always know how. Unwanted behaviors can be frustrating and even embarrassing. The best way to stop bad behaviors is to train your dog. You might say “easier said than done,” but OnGuard handheld dog trainer makes it easy. It lets you give your dog instant feedback, right when the bad behavior occurs. This gives you control of the situation so you can train, treat and repeat your way to a better relationship with your four-legged friend.

OnGuard is great for training your dog
anyplace, anytime.

Safety Alarm
Quickly draw attention to your location by activating the loud, pulsating panic alarm. The optional safety alarm can be clicked on (and stay on) if needed in an emergency situation.
OnGuard’s high-powered LED light can be used like a traditional flashlight, or to help get the attention of an extra stubborn dog (as demonstrated in the video).
Ultrasonic Sound
OnGuard emits a high pitched tone specifically targeted for a dog’s hearing range. Most humans can’t even hear it. Don’t worry though - there’s an indicator light that shows you its working. Use the ultrasonic function to deter your dog from unwanted behaviors like barking or jumping on the furniture.

Made by dog owners, for dog owners.

We love what we do, and it’s been our goal for over a decade -- to help you have the best possible relationship with your dog. We want to provide you with the most innovative, humane and effective training tools you won’t find anywhere else.

Train. Treat. Repeat.

Bring it with you anywhere you take your dog. Toss it in your bag, backpack, purse or pocket. OnGuard dog trainer is always ready to help, at home or on the go.

See the OnGuard dog training tips

OnGuard Training Camp

Meet Logan

Logan is a very active, loyal, smart (sometimes too smart) German Shepherd. He is very friendly but LOVES to bark every time someone rings the doorbell, knocks on the front door or passes by the front window.

Watch Logan's Video >
Logan out on the town.

Help your dog be the best dog they can be.

Get real results. OnGuard is easy to use, safe and humane. Because your dog is worth it.

OnGuard™ Features

OnGuard™ is a handheld device that allows you to do 1-on-1 training with your dog. Use it to reinforce training commands and stop undesirable habits such as barking at the door or jumping on the furniture.

OnGuard Training Tips: Barking At The Front Door

Our customers’ favorite use for OnGuard is to deter barking at the front door. Here we will share our training tips to solve this common behavioral issue.

You’re familiar with the scene... Someone knocks at the door or rings the bell and your dog goes berserk. Frustrated you speed to the door, rehearsing your apology for the whomever is on the other side.

  1. As soon as your dog starts barking, calmly stand up and walk to the door. Never yell at your dog for barking, it will increase his energy level and make the problem worse.
  2. Step in front of the dog, positioning your body between him and the door.
  3. Point OnGuard at the dog then press and hold the Ultrasonic button.
  4. Take a step towards the dog, essentially using your body to push him back from the door.
  5. For extra stubborn dogs you can activate the strobe light feature in addition to the ultrasonic sound.
  6. Once the dog has backed away from the door, let go of the sound & light buttons. Allow him to calm down for a moment and then open the door.
  7. Remember to reinforce your dog’s good behavior, as soon as they do what you want. Give him a small treat / verbal praise / pet them to let them know you’re happy with their good behavior. Keep your OnGuard close by so that when training opportunities come, you’ll be ready.

You can modify these steps as needed to work for your training situation. Train, Treat & Repeat!

Results are not immediate. Training steps should be repeated as often as necessary to teach your dog when his behavior is not acceptable -- but also that he will be praised for his good behavior.

Compare OnGuard™ to the Competition


Ultrasonic Output:
+105db at 1 metre
Audible Alarm Output:
+100 db at 1 metre
Light Output:
4,800 lux at 1 foot
15cm (L) x 5.8cm (H) x 4.6cm (W)
0.11kg without batteries
0.21kg with batteries
Notable Features:
Dual Rubber Coating
Lanyard attachment included
Uses 4 AA batteries - Not Included

Q & A

What is ultrasonic sound?

Ultrasonic sound frequencies are above the hearing range of humans. Although this noise is inaudible to most humans, dogs hear it loud and clear. This high-pitched noise is alarming and unpleasant to dogs being targeted, but completely safe and humane.

Will OnGuard™ work on dogs in other rooms or on the other side of a fence?

Ultrasonic sound cannot travel through solid objects like walls or solid fences. Make sure OnGuard™ is in clear line of sight of the dog you wish to train or deter.

Will this hurt the dog?

No. Although the ultrasonic sound emitted by OnGuard™ is a great tool for training, it is physically harmless to dogs.

Can I use this to train my puppy?

Due to the powerful nature of this product, it is not recommended for use on puppies under 6 months old as they are still developing their hearing.

What’s the blue light on top for?

The blue LED light on top of the unit indicates the ultrasonic button has been pressed and ultrasonic sound is being emitted.

What is the range?

The ultrasonic frequencies can be heard by dogs up to 50 feet away.

Loading Batteries into the OnGuard

OnGuard ultrasonic output test

90 Day Money Back Guarantee

Don't worry! We've got you covered. OnGuard™ is backed by a 90 Day Money Back Guarantee which starts the day you receive your order. If for any reason you're unsatisfied with OnGuard™ during this time period, contact us. We'll issue you an RMA and refund the product price.

1 Year Manufacturer's Warranty

OnGuard™ is also backed by a 1 Year Manufacturer's Warranty. This protects you in the unlikely event there are any manufacturer defects.

Additional Protection Plans

2 Year Protection Plan



3 Year Protection Plan



3 Year Protection Plan
+ Accidental Coverage