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  • Contech CatStop Ultrasonic Outdoor Cat Deterrent
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Contech CatStop Ultrasonic Outdoor Cat Deterrent

by Contech
| 17 answered questions

Price: $56.37 & FREE Shipping
Only 16 left in stock.
Ships from and sold by Buy Wholesale Cheap.
  • Outdoor cat deterrent withmotion-activated burst of ultrasonic sound
  • Protects your garden, plants or sandbox without chemicals or fences
  • Cats are startled by sound (at a frequency most humans can't hear) and teaches them to stay away
  • Monitors up to 280 square feet (26 square meters)
  • Operates for up to 6 months on a single 9-volt battery.The 9-Volt AC adapter is sold separately
18 new from $50.41 1 used from $67.67

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Frequently Bought Together

Contech CatStop Ultrasonic Outdoor Cat Deterrent + Contech CatStop Power Adapter + Contech CRO101 Scarecrow Motion Activated Sprinkler
Price for all three: $132.85

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Product Details

Product Manual [459kb PDF]
  • Product Dimensions: 10 x 6.2 x 4 inches ; 12 ounces
  • Shipping Weight: 14.1 ounces (View shipping rates and policies)
  • Shipping: Currently, item can be shipped only within the U.S.
  • ASIN: B0001A9TE2
  • Item model number: 30000045
  • Average Customer Review: 3.1 out of 5 stars  See all reviews (541 customer reviews)
  • Amazon Best Sellers Rank: #6,315 in Pet Supplies (See Top 100 in Pet Supplies)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Product Description

Protect your garden, plants or sandbox without chemicals or fences. When cats come within range, the CatStop automatic outdoor cat deterrent emits a sudden burst of ultrasonic sound (at a frequency most humans can't hear)--the sound startles cats, and teaches them to stay away. Installation is easy--just place the CatStop in the garden or outdoor area that you want to protect, and it's ready to go.

The CatStop automatic outdoor cat deterrent is constructed of durable, weather-resistant materials, and has been designed to provide many years of reliable service.

CatStop automatic outdoor cat deterrent

How It Works

The CatStop is easy to use. Simply install a 9-volt battery and then place the unit in your garden, with an unobstructed view of the area you want to protect. There are no controls or adjustments. The built-in motion sensor detects any cats entering the area and emits a piercing, high-decibel alarm that startles the cat and frightens it away. Since the sound is ultrasonic, you and your neighbors cannot hear it.

The CatStop is an effective cat deterrent for several reasons:

  • A powerful burst of ultrasonic sound startles the cat.
  • The cat equates the location with the unpleasant occurrence.
  • The cat avoids the location in the future.
  • Ulike pest deterrents that operate continuously, the CatStop unit waits for the animal to come into its range before activating, making the function unpredictable for the cat, and therefore more effective.


  • Infrared sensing angle: 80 degrees.
  • Detection range: up to 20 feet (6 meters).
  • Battery life: In low traffic areas 3-4 months. In high traffic areas, CatStop adapter is recommended.
  • Sensor warm-up time: 60 seconds.
  • Power supply: 9-volt alkaline battery or 9-Volt AC adapter (available for purchase separately).
  • Red LED: indicates when the unit is activated.
  • Unit on time when activated: three seconds.
  • Output frequency: sweeping from 21-25 KHZ.
  • Water resistant
  • Includes two stakes for versatile mounting (ground level, approximately 4" above ground and 10 inches above ground).

Customer Questions & Answers

Customer Reviews

Stopped working after 2 weeks.
Found that ground up citrus, grapefruit in my case, spread around the yard and gardens stopped the cats from using my yard and gardens as their favorite litter box.
First of all, the movement sensor has been very erratic, sometimes it activates and for long periods you can walk in front and it will not turn on the unit.

Most Helpful Customer Reviews

193 of 200 people found the following review helpful By Regular Customer on May 10, 2005
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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148 of 153 people found the following review helpful By psychicguy on March 13, 2005
Verified Purchase
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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44 of 47 people found the following review helpful By L. Crews on September 15, 2006
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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72 of 80 people found the following review helpful By Rikki B. Schwartz on October 20, 2005
Verified Purchase
Apparently this item has had mixed reviews. In my case, I have 2 cats and at least one of them decided that the bathtub and one spot in my dining room were suitable places for urinating. I put one of these devices in each location, and within minutes the cats (and my dog for that matter!)avoided the areas in front of the sensors like the plague. They've learned how to walk in back of the one in the living room, such that it doesn't trigger, (just in case someone is afraid they will not enter the "room" it is in and so forth), but my problem is FINALLY solved. It was my last hope - thank heavens it worked. Note: The first Catstop I rec'd was defective, such that once it was triggered, it remained on (i.e., emitting sound) at all times. I simply called Contech and they replaced it within a week - no questions asked, nor did they ask me to return the product I had. Finally, the product does state that it is not for indoor use, given that the sound is probably not too healthy for human or animal ears in confined spaces, but since it rarely if ever gets triggered anymore, I was willing to take the chance until/unless I found it wouldn't work as a deterrent.
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