This 6060107 electric ultrasonic rat/mouse repellent from Nature has an effective range with a detection angle of 100º and a covered area of 80 - 100 square metres all around around.

This ultrasonic device functions by being plugged into an electrical socket.

The flashing indicator lights up and produces ultrasound noises repelling rats, mice and insects.

It should be ideally placed in a corner of the room so that the range of the waves is as broad as possible.