Safety Technology Electronic Dog Repeller and Trainer 35-45kHz Ultrasonic – Dual Training and Deterrent Modes, 9V Battery, ABS Plastic, 5.5″ x 2.25″ x 1.13″, 0.3 lbs

SKU: ST-DOGREPEL
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$19.00

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Picked one of these up after a neighbor’s dog started charging at me on my morning walk. It’s a simple handheld device — point it at the dog, press the button, and the ultrasonic frequency gets their attention without hurting them or making a scene. Works for training your own dog too, which I didn’t expect to find as useful as I did.

  • Dual-mode operation — switch between training mode and deterrent mode depending on the situation
  • 35-45kHz ultrasonic frequency — audible to dogs, mostly inaudible to humans
  • Compact and lightweight — 5.5″ x 2.25″ x 1.13″, 0.3 lbs, fits in a pocket or bag easily
  • One 9V battery — easy to find, lasts a reasonable while with normal use
  • Safety Technology brand — made by a manufacturer with a long track record in personal safety products

A Simple Way to Handle Dog Encounters Without Making Things Worse

Whether it’s a dog charging at you on a walk or your own dog ignoring commands, this little device gives you a non-confrontational option. The ultrasonic frequency gets a dog’s attention in a way that doesn’t involve yelling, aggressive body language, or escalating the situation. It’s humane, it’s quiet to bystanders, and it actually works. Weighs almost nothing, fits in a jacket pocket, and you’ll forget it’s there until you need it.

Who This Dog Repeller Is For

If you walk, run, or bike in areas where loose dogs are a possibility, this is worth having. Mail carriers, delivery drivers, dog walkers, joggers — anyone who moves through neighborhoods regularly will find the deterrent mode useful. You don’t need to pull out pepper spray or do anything dramatic. A quick point and press usually interrupts a dog’s charge and gives you time to move away calmly.

Pet owners will also find the training mode genuinely useful. The ultrasonic signal paired with verbal commands can help reinforce training without physical correction. It’s a good tool for working on recall, reducing barking, and addressing behaviors that other methods haven’t solved. If you’ve got a dog that selectively listens, this gives you something consistent to work with.

Is This the Right Choice for You?

Choose this dog repeller if you want:

  • A humane, non-contact way to deter aggressive or charging dogs
  • A dual-purpose tool that works for training your own dog too
  • Something small and lightweight you’ll actually carry on walks or runs
  • A non-spray option that doesn’t risk wind blowback or staining

Consider something else if you need:

  • Protection against truly aggressive large dogs — a canine pepper spray may be more reliable in worst-case scenarios
  • Something that works on multiple animals beyond canines — this is designed specifically for dogs

How It Actually Works

The device emits an ultrasonic sound in the 35 to 45kHz range — well above what most humans can comfortably hear, but very much within the range that dogs pick up clearly. When a dog hears it, they typically pause, back off, or redirect their attention. It doesn’t cause pain — it’s more like a sudden loud noise to them, enough to interrupt what they’re doing without causing distress or injury.

Two modes let you adjust for the situation. In training mode, you use the sound as a signal paired with commands or rewards — it gets the dog’s attention so your verbal instruction registers. In deterrent mode, the output is more intense and intended to discourage a dog from approaching further. The switch between modes is straightforward, and the whole device is simple enough that anyone can figure it out in about thirty seconds. ABS plastic body is light and durable — it’ll survive getting knocked around in a bag.

Quick Comparison: How Does This Dog Repeller Stack Up?

Feature This Ultrasonic Repeller Canine Pepper Spray Walking Stick/Baton Loud Alarm/Siren
Range Up to ~15 feet Up to 10-15 feet ✓ Arm’s reach only Varies
Humane / Non-Contact Yes ✓ Yes — spray only Physical contact Yes ✓
Wind/Blowback Risk None ✓ Yes — spray drift None None ✓
Training Use Yes ✓ No No Limited
Size / Carry Pocket-size ✓ Pocket-size ✓ Bulky Pocket-size ✓
Best For Walkers, runners, trainers Serious dog threats Physical deterrent Noise distraction

Practical Details

Dimensions: 5.5″ x 2.25″ x 1.13″. Weighs 0.3 lbs. Powered by one 9-volt battery (not included). ABS plastic body in black. Frequency range: 35 to 45kHz. Made by Safety Technology. Works on canines — not designed for other animals. Suitable for both training scenarios and deterring unknown dogs. No special storage or handling requirements.

For anyone who walks or runs in areas where loose dogs show up, this is one of those low-cost, low-hassle things that’s genuinely worth keeping in a pocket — quiet, effective, and something you’ll actually use.

Frequently Asked Questions

Does the ultrasonic sound hurt dogs?

No — the ultrasonic frequency is designed to be attention-getting, not painful. Dogs hear in a much wider range than humans, so sounds in the 35-45kHz range register strongly to them without causing injury or lasting distress. Think of it like a very sharp whistle — it interrupts what they’re doing and redirects their focus. It’s a humane deterrent, not a weapon. The goal is to stop a dog’s approach, not to hurt the animal.

How effective is it against an aggressive or charging dog?

For most dogs, it’s effective — the ultrasonic signal interrupts their focus and causes them to back off or pause, which gives you time to create distance. It works best at closer range, generally within about 15 feet. Results can vary depending on the dog’s temperament, training history, and level of arousal. A dog that’s in full prey drive or has been specifically trained to work through distractions may not respond as strongly. For truly aggressive large dogs in a worst-case scenario, a dedicated canine pepper spray may offer more reliable stopping power.

Can I use this to train my own dog?

Yes — the training mode is designed for exactly that. The ultrasonic signal gets your dog’s attention consistently, which you can pair with verbal commands and positive reinforcement. It’s useful for recall training, reducing nuisance barking, and breaking unwanted behaviors. It works best as part of a consistent training routine rather than as a standalone solution. Think of it as a way to get a reliable attention signal that isn’t your voice — dogs respond to it quickly because it’s distinct and attention-grabbing.

Will other people hear it when I use it?

Mostly not. The 35-45kHz frequency range is well above the typical human hearing range of about 20Hz to 20kHz. Some people, particularly younger individuals with sensitive hearing, might detect a faint high-pitched sound at close range, but it won’t be loud or disruptive to bystanders. You can use it in a park, on a sidewalk, or in a neighborhood without drawing attention from people around you. The whole point is a discreet intervention — and it delivers on that.

ManufacturerSafety Technology
Frequency35 to 45HKZ
BatteryOne 9 Volt
MaterialABS Plastic
ColorBlack
Weight0.3 lbs
Dimensions5.5" x 2.25" x 1.13"

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