Original price was: $19.00.$16.15Current price is: $16.15.
I looked into a few different options for dealing with dogs on a walking route before finding the ultrasonic repeller category. The appeal is straightforward — it emits a high-frequency sound that dogs find unpleasant but humans can’t hear, with no pain, no spray, and nothing to clean up. This one from Safety Technology adds a training mode alongside the deterrence mode, so it covers two different situations with one device.
Most people come across ultrasonic dog repellers one of two ways: they’re a dog owner looking for a humane training tool, or they’re a walker, runner, or mail carrier dealing with dogs that rush them on their route. This device covers both situations. The training mode is designed to reinforce commands and discourage problem behaviors at home. The deterrence mode is for when a strange dog is approaching aggressively and you want it to back off without spraying or physically engaging.
It emits sound in the 35–45kHz range — well above the threshold for human hearing, which is why you won’t hear anything when you use it. Dogs hear that range clearly, and they generally find it unpleasant enough to stop and reconsider their approach.
Runners and walkers who encounter loose dogs are probably the most common buyer for this type of product. If you have a regular route and there’s a dog that’s charged at you before, carrying this is a low-effort precaution that doesn’t require anything to be unlocked, uncapped, or aimed carefully. Point it toward the dog and press the button.
Dog owners dealing with specific behavioral issues — excessive barking, jumping, refusing commands — can use the training mode as part of a consistent correction routine. The key word there is consistent; this works best when it’s paired with regular training, not used as a standalone fix. It’s also a reasonable option for postal workers, delivery drivers, meter readers, and anyone else who regularly enters properties with dogs they haven’t met before.
Choose this dog repeller if you want:
Consider something else if you need:
The device emits ultrasonic sound waves — frequencies between 35 and 45kHz. Dogs hear significantly higher frequencies than humans do, and sounds in this range are well within their hearing. The sound is unpleasant to them but causes no physical harm. The response varies by dog: most will stop, back away, or lose interest in approaching. Some dogs may be less affected, particularly older dogs with some hearing loss.
The two-mode design is the practical advantage here. In training mode, the ultrasonic signal is calibrated to interrupt unwanted behavior and get a dog’s attention during command training — it’s used as a correction signal the way a clicker is used as a reward signal. In deterrence mode, it’s aimed at discouraging an unfamiliar dog from approaching or continuing aggressive behavior.
Operation is simple: the device is handheld, point-and-use. At 5.5 inches long and 0.3 lbs, it fits in a jacket pocket, belt clip, or running belt without difficulty. The 9V battery is widely available and doesn’t require any charging routine — put a battery in, it works until the battery dies.
| Feature | This Ultrasonic Repeller | Dog Pepper Spray | Personal Alarm | Walking Stick |
|---|---|---|---|---|
| Method | Ultrasonic sound ✓ | Chemical irritant | Loud noise | Physical barrier |
| No Mess/Residue | Yes ✓ | No (spray residue) | Yes ✓ | Yes ✓ |
| Training Use | Yes ✓ | No | No | No |
| Wind-Proof | Yes ✓ | No | Yes ✓ | Yes ✓ |
| Reliability on Aggressive Dogs | Good, varies by dog | High ✓ | Varies | Good ✓ |
| Best For | Everyday walkers, dog training | Higher-risk situations | Attention-drawing | Physical deterrent |
Frequency range: 35–45kHz. Dimensions: 5.5″ x 2.25″ x 1.13″. Weight: 0.3 lbs. Power: one 9V battery (not included). Material: ABS plastic. Color: black. Manufacturer: Safety Technology. Two operating modes: training and deterrence. No warranty information listed — contact the manufacturer directly with questions.
A practical, no-mess option for walkers, runners, and dog owners who want a humane way to handle dog encounters without carrying spray or worrying about wind direction.
Ultrasonic repellers are effective on most dogs, but not all. Dogs with some hearing loss — common in older animals — may not respond as strongly. Some dogs with high prey drive or in a highly agitated state may also be less deterred. For casual encounters with loose neighborhood dogs, this tends to work well. For situations involving a dog that’s already in full-charge mode, dog-specific pepper spray may be a more reliable backup. Many people carry both.
No. The 35–45kHz frequency range is well above the upper limit of human hearing, which tops out around 20kHz for most adults (and lower as we age). You won’t hear anything when you press the button. Children have slightly better high-frequency hearing than adults, but this range is still above what most can detect. You may hear a very faint click from the device activating, but the ultrasonic signal itself is silent to human ears.
In training mode, the device is used as an interrupter — you activate it when a dog begins an unwanted behavior (jumping, excessive barking, ignoring a command) to get their attention and signal that the behavior should stop. It works best when paired with consistent command training and positive reinforcement. Use it as a correction signal, not as the only training tool. Most dogs respond within a few sessions once they associate the sound with “stop that.”
Battery life depends on how frequently you use it. For someone carrying it on daily walks and activating it occasionally, a 9V battery typically lasts several months. If you’re using it heavily for training sessions, you’ll go through batteries faster. It’s worth keeping a spare 9V on hand — they’re inexpensive and available everywhere. Test the device periodically by pointing it at your dog (if you have one) and watching for a reaction to confirm it’s still working.
| Manufacturer | Safety Technology |
|---|---|
| Frequency | 35 to 45HKZ |
| Battery | One 9 Volt |
| Material | ABS Plastic |
| Color | Black |
| Weight | 0.3 lbs |
| Dimensions | 5.5" x 2.25" x 1.13" |
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