Anyone who has a garden knows that animals like cats, dogs and foxes are another problem that needs to be dealt with to keep your garden in great shape. As they can cause a number of problems for your garden you probably would like to keep them away without harming them.
The first line of defence is to ensure that your garden boundaries are secure. Any gaps in your fence should be blocked to deny low level access. If this doesn’t help, you need to consider an ultrasonic cat or fox repellent. Ultrasonic devices emit a high frequency sound which is annoying to cats, foxes and to other animals but is not audible to humans.
There are various different models some of which operate continuously and others which have an infra red detector and only emit a pulse of sound when an animal triggers the device. To be successful you need to ensure that the model is powerful enough to cover the area you wish to protect. In addition make sure that the sound frequency is designed for larger animals since some models are intended to deter insects and so would be no use for foxes. On some models you can change the frequency to choose which animals you would like to keep away.