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CatStop Ultrasonic Cat Deterrent

3.3 out of 5 stars 593 customer reviews
| 23 answered questions

Price: $59.99 & FREE Shipping. Details
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  • Defends gardens, sandboxes and other protected areas
  • Works day and night, all season long
  • No chemicals or barriers
  • Uses a harmless burst of ultrasonic sounds, only heard by cats
  • Monitors up to 300 sq. ft.
15 new from $59.99 12 used from $40.00

$59.99 & FREE Shipping. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • CatStop Ultrasonic Cat Deterrent
  • +
  • Yard Sentinel, Outdoor Electronic Pest Animal Ultrasonic Repeller, with Ac Adaptor, Extension Cord
Total price: $92.44
Buy the selected items together

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Technical Details

Product Description

Do cats top your list of garden pests? You’re not alone. The CatStop Ultrasonic Cat Deterrent emits a harmless burst of ultrasonic sound—a frequency only heard by cats—to keep them out of gardens, sandboxes and other protected areas. Keep pests away from your garden with no chemicals or barriers, just CatStop.

Product Information

Product Dimensions 10 x 6.2 x 4 inches
Item Weight 12 ounces
Shipping Weight 14.1 ounces (View shipping rates and policies)
Department Teak
Manufacturer CatStop
Domestic Shipping Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
International Shipping This item is not eligible for international shipping. Learn More
Item model number 300000045
Batteries 1 AA batteries required.
Customer Reviews
3.3 out of 5 stars 593 customer reviews

3.3 out of 5 stars
Best Sellers Rank #6,433 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
#39 in Pet Supplies > Cats > Repellents & Training Aids
#545 in Patio, Lawn & Garden > Gardening > Pest Control > Repellents

Technical Specification

Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.


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From the Manufacturer

Important Information


Keep cats out of your flower bed or garden! Simply place this unit facing the area you want to protect and it will emit a piercing, high-decibel ultrasonic alarm when the built-in motion detector senses motion. The Ultrasonic Motion Sensing Animal Repeller requires the use of one 9-Volt Alkaline Battery for power, sold separately.

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

I really feel like I must defend this product and encourage others to give it a try, because thanks to this green box my yard is cat free and will stay this way as long as I keep this box.

When I purchased this device a year ago to fend off hordes of neighboring cats who found our yard to be a perfect litter box, I expected immediate results. I just wanted to see my yard completely cat-free the next day or at least in a week, but I had no such luck.

The problem is not poor functioning or ineffectiveness of the device, the problem is the nature of cats - they are incredible creatures of habit and it takes a very long time to brake those established habits. So, if you think that this device will miraculously get rid of the cats in a day or in a month - you will be disappointed, the cats are extremely persistent.

Once I learned this, I started methodically moving the device from one corner of the yard to another and kept it at every new location for several weeks until cats stopped going there. Of course they found a different spot in my yard, and I moved the device there, and so on.

I think that the main idea is to leave the device in one spot for a long period of time (at least a few weeks) which teaches the cat that this place is always off limits and they stop going there. In the course of nine months I have moved the devise consistently following the patterns of favorite cat passages. At times I was losing all hope but my persistence has been rewarded - our yard is cat free, but I am not putting the device away, I keep using it as a precautionary measure.

I am very satisfied with this product.
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Contrary to the other reviews I have to say it has worked for me so far (update: now 4 months!). I found the range to be more than sufficient, turning on when I'm a good 20 feet away. The construction is solid and it has an extension to raise the height over the grass which seems to help the range. I was worried that I wouldn't know it was working or not, or whether it was defective since the sound is suppose to be in the high frequencies, but I can hear a very high pitch sound and a red light also turns on inside the sensor. One thing to watch out for that might explain some of the other bad reviews is the fact that some cat breeds and older cats are deaf to high frequencies so this device doesn't bother them at all. The company warns about this in their instructions. All the stray cats pooping on my lawn seems to have excellent hearing so far.
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Length: 0:05 Mins
The attached video demonstrates the CatStop (a.k.a. Kitty Claymore) in action as captured by security camera video at night. The blur of the cat when moving is due to the long exposure time needed by the camera to capture images in the dim light. The CatStop is mounted on the lower corner of the garage in about the center of the picture.

You'll see the sensor window on the CatStop light up red when the ultrasonic alarm goes off just as the cat gets in front of it. The cat leaps back when blasted... this thing WORKS! Apparently not being a very bright kitty, he comes right back for a second try and gets blasted again. This time he runs away in the same direction he came from.

While this video clearly shows the CatStop works as advertised, unfortunately cats don't seem to learn and I see the same ones back night after night to get repeatedly blasted. However, if you have a specific small location you need to keep clear of cats (like a small garden bed), it works perfectly. To keep your entire yard clear of these roving critters, you'd need them surrounding your entire perimeter with overlapping fields of fire.

Can you say Dien Bien Phu?
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We have three cats- and one of them (I don't know which-- and urine DNA testing on each of them is probably not reasonable!) Has decided it would be a good idea to 'mark' our pretty, Leaded Crystal with a brass kickplate front door. The original Kick Plate was pitted and ruined-- so before I installed the new one I waited... and sure enough-- after only a few weeks, there was urine markings on the door again. I bought a scat mat to zap them (just a little!) and that worked until the mat was removed. This little (it's smaller than what it looks in the photos) gizmo has been working like a charm for the past couple of weeks we have had it. Another week or two and I will be comfortable enough to install the new brass kickplate! Anyway, we have it situated where if anyone or anything comes to the front door.. off it goes.. and believe me, my tow 8 year old cats hear it just fine... Mr. Barkeley (14) seldom if ever leaves the garage- so I have not actually tested it on him... but I am SO very happy to NOT have urine all over the door anymore! YYYIIIIPPPIIIEEEE!

Update: 2 months later: After a couple of weeks the prodct started making a little noise when activated like perhaps the speaker had blown-- I called Contech- they were very helpful and promptly sent a replacement unit at no charge. I also added the AC adapter they offered because ours gets a workout being at the front door. While waiting for the replacement to arrive, I changed the battery and the noise went away- so I returned the replacement to Contech.
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