Ultrasonic devices require power to operate and this is usually by a 9v battery. After a short period they will stop coming in to the area, not just for a while, but for an very long period. Unable to withstand the noise they move on to other areas, leaving your garden cat free.Īll ultrasonic repellents work by sensing movement, which in turn activates the ultrasonic tone, lasting for a few seconds.Ĭats remember this uncomfortable experience and quickly learn that it will happen every time they visit area.

Ultrasonic Cat Repellents work by emitting a high frequency tone that cats and other animals find uncomfortable. What we found hilarious was setting up a camcorder and catching rogue cats and dogs getting frightened off, you really get an insight into how effective this cat repellent is when you see animals taking off like a bullet out of a gun! Watch camera number 4 below to see the Contech CRO101 in action, seeing off a couple of dogs. I recommend getting decent lithium rechargeable batteries or use the tip above to connect it to a 9v power adapter. The only downside is that is requires a battery, the lifespan of which depends on how often a cat sets the sprinkler off. Once it is set up, you have immediate protection, and piece of mind that you will not be stepping in cat mess or having your trip to the garden spoiled by cat smell. The Contech CRO101 Scarecrow Motion Activated Sprinkler is a great piece of kit for protecting your garden from cats. Now it has a persistent supply and will run all year long keeping cats out of your garden! Conclusion Now you just have to connect the two positive wires together and both negative wires, make it water tight and plug it in. Cut out the battery holder from the sprinkler and strip those wires too. In order to make the adapter work with the CRO101 you’ll need to cut off the transformer plug and strip the wires down.

Motion activated sprinkler scarecrow