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

SKU: ST-DOGREPEL
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$19.00

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This ultrasonic dog repeller works on a simple principle: dogs hear frequencies humans can’t, and high-frequency sound is unpleasant enough to interrupt unwanted behavior without causing any physical harm. One device, two modes — use it for obedience training with your own dog or to deter an aggressive dog approaching from a distance.

  • Ultrasonic frequency range: 35–45kHz — audible to dogs, inaudible to humans
  • Two modes: training/behavior reinforcement and deterrent/repeller
  • Effective at range — keep distance between you and an unfamiliar or aggressive dog
  • Compact and lightweight at 0.3 lbs — 5.5″ x 2.25″ x 1.13″
  • Powered by one 9V battery (included); ABS plastic construction

Ultrasonic Dog Deterrence: How It Actually Works

Dogs can hear frequencies up to approximately 65kHz — well beyond the human upper limit of around 20kHz. This device emits sound in the 35–45kHz range, which falls firmly in the range dogs can hear clearly but humans cannot detect at all. When directed at a dog, the sound is unpleasant enough to interrupt behavior and redirect attention without causing pain or injury.

The key distinction from physical deterrents — sprays, barriers — is that ultrasonic sound works at range and leaves no trace. You point the device, activate it, and the dog responds to something it can hear that you cannot. The effect is behavioral, not physical.

Who This Device Is For

Two distinct users reach for this product. The first is a dog owner who wants a training aid that reinforces commands without treats or physical corrections. The training mode provides a consistent audio signal that dogs learn to associate with behavioral cues, making it useful for obedience work and breaking habits like excessive barking or jumping.

The second user is anyone who encounters unfamiliar or aggressive dogs in the course of daily life — runners, cyclists, mail carriers, delivery drivers, or anyone who walks through neighborhoods where loose dogs are a realistic concern. The deterrent mode gives you a tool that works from a distance before a situation requires physical contact.

It’s also worth noting for dog owners: this device can help interrupt a charging or aggressive approach from another dog without putting your own pet at risk from a physical deterrent like pepper spray.

Is This the Right Choice for You?

Choose this device if you want:

  • A non-contact, non-chemical way to deter or redirect a dog at range
  • A dual-purpose tool that functions as both a training aid and a deterrent
  • A lightweight, pocket-sized option that goes anywhere without bulk or legal concerns

Consider something else if you need:

  • Guaranteed stopping power against a dog in a determined aggressive charge — ultrasonic deterrence works on most dogs but results vary by individual animal and situation
  • A device that works on humans — this is specifically designed for canine deterrence

How the Device Operates

Operation is direct: point the device toward the dog and activate the appropriate mode. The deterrent mode emits a continuous or pulsed high-frequency signal designed to be unpleasant and interrupting. The training mode produces a signal that can be used as a consistent marker during obedience sessions — activate it at the moment you want to mark or correct behavior.

At 5.5 inches long and 0.3 lbs, the device fits easily in a jacket pocket, running belt, or bag. The ABS plastic housing is impact-resistant and lightweight. Power comes from a standard 9V battery, which is easy to source and replace anywhere. The black housing keeps the device low-profile.

Effectiveness varies by dog — individual animals respond differently to ultrasonic frequencies based on their hearing, age, and temperament. Most dogs respond noticeably to the 35–45kHz range, particularly when the stimulus is new. Consistent use in training contexts improves reliability over time as dogs learn to associate the signal with a specific expectation.

Quick Comparison: How Does This Dog Repeller Stack Up?

Feature This Ultrasonic Repeller Pepper Spray (Dog Formula) Physical Barrier/Stick Citronella Spray Collar
Contact Required No ✓ No ✓ Yes No ✓
Works at Range Yes ✓ Limited (8-12 ft) Arms reach only Proximity only
Reusable Yes ✓ Limited uses Yes ✓ Yes ✓
Training Function Yes ✓ No No Yes ✓
Risk to Own Pet None ✓ Yes — drift/blowback Physical risk N/A — worn by pet
Best For Training + deterrence, safe around own dog Aggressive dog deterrence Last-resort physical barrier Home training only

Practical Details

Manufacturer: Safety Technology. Frequency: 35–45kHz. Battery: one 9V (included). Material: ABS plastic. Color: black. Weight: 0.3 lbs. Dimensions: 5.5″ x 2.25″ x 1.13″. Designed for canine use. 1-year manufacturer warranty from Safety Technology.

For anyone who wants a humane, non-contact option that handles both dog training and dog deterrence in a single pocket-sized device, this repeller covers both needs without chemicals, contact, or harm to the animal.

Frequently Asked Questions

Will this device hurt the dog?

No. The ultrasonic frequency range emitted by this device is unpleasant to dogs — similar to how a loud, irritating sound affects humans — but it does not cause physical harm or injury. The sound interrupts behavior and creates discomfort sufficient to redirect attention or deter approach. Once the device is deactivated, the effect stops immediately. This makes it a humane option for both deterrence and training compared to physical or chemical alternatives.

How effective is it against an aggressive dog?

Effectiveness depends on the individual dog. Most dogs respond clearly to ultrasonic frequencies in the 35–45kHz range, particularly when the stimulus is new to them. Dogs that have been conditioned to pain or are in a highly aroused state may not respond as readily. As a deterrent tool, it works best as an early intervention — activating it as a dog begins to approach, rather than waiting until the situation has escalated. It significantly improves your options without requiring physical contact.

Can I use this to train my own dog?

Yes. The training mode is designed specifically for obedience work and behavior modification. It provides a consistent audio signal that dogs can learn to associate with commands or corrections over time. Use it as you would a clicker — at the precise moment you want to mark or redirect behavior. Consistent application during training sessions builds the association between the signal and the expected response. It works across a range of training contexts, from basic commands to breaking habits like jumping or barking.

How far does it work?

The device is designed for range use — it’s effective at distances that keep space between you and an approaching dog. The exact effective range depends on environmental factors like ambient noise, wind, and the individual dog’s hearing sensitivity. In open, relatively quiet conditions, the ultrasonic signal carries well beyond typical pepper spray range. For best results, activate the device early when you first observe a dog approaching rather than waiting until it’s within arm’s reach.

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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