Does Ultrasonic Animal and Pest Repeller Work? - Zacs Garden

Does Ultrasonic Animal and Pest Repeller Work?

Animal Repeller

Animal Repeller

A Humane Alternative to Repel/Deter Chemicals and Traps

Yard Gard

Yard Gard

Cost ★★★☆☆ (See cost here)

Aesthetic 3/10

Source Local hardware store / Internet

BIRDS SEEM UNAFFECTED as the sound range is outside of the hearing range of birds.

How does the Ultrasonic Animal Repeller work?

When the motion sensor is triggered on the repeller, it activates an ultrasonic sound which is used to deter unwanted animals.

The sound frequency is supposed to be outside of the human range so that you and I can’t hear it, although a lot of people are saying they can hear it when its working (especially younger people). When it goes off it sounds a little like a cicada.

The unit is 3.5 x 6.8 x 5.2 inches (Similar to a CD case in size except a bit thicker). It is easy to move around and set up. Just put it where you want it and turn it on.

** Birds seem unaffected as the sound range is outside of the hearing range of birds.

Using the ultrasonic repeller

There are Keyhole slots on the repeller so you can either sit it on something, or hang it up on a wall.

You can use batteries to power the unit, but if it is working a lot (the ultrasonic sensor is getting activated a lot) then it can chew through batteries. It also comes with a power cord if you are going to put it near a source of power this option is advised.

The Ultrasonic repeller will

  • Deter animals from entering the particular area
  • Will stop animals pooing and weeing in the guarded area
  • Only work when the motion sensor is triggered, to save power

The Ultrasonic Animal Repeller works best against

  • Cats
  • Dogs
  • Rabbits
  • Raccoons
  • Squirrels
  • Groundhogs
  • Bats
  • Pack Rats
  • Deer
  • Possums
  • Foxes

*Limited effect on birds.

Conditions it works best in

The manufacturer says “Maintenance-free and weatherproof”, however you may not want to put it out in all the elements, as some people have said that water has got into it, rendering the unit useless. Placing it off the ground and under some kind of cover is advised.


  • It does take a few days for animals to get used to the sound and get repelled by it.
  • Young people can hear this. Teenagers can hear the sound, which can be quite annoying for them. This may be bad or good depending on your situation.
  • Effective to up to 4,000 square feet
  • It can also be used in conjunction with other pest deterrents for stubborn pests.

Ultrasonic animal repeller works in keeping pests away, but with limited range and some species not hearing the sound, you should consider adding other pest controls in conjunction. Specifically birds repellers

If you likes my review please share it on social media. It helps to "keep the lights on".

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