Many of us have to deal with unwanted pests in the home and we look for the best means of getting rid of them. One way a lot of homeowners choose is ultrasonic pest repellents. These are intended to plug into the wall which allows them to emit a very high frequency. Although this sound does not bother humans, it is designed to be a deterrent to insects and rodents. Another 
reason many homeowners choose them is that they do not involve the use of poisons or traps. But, how well do they really work?
Studies that have been performed have shown differing results with regard to how well ultrasonic pest repellents work. They have proven ineffective at getting rid pests like spiders and ants and do not seem to deter cockroaches either. Some studies have even shown that some pests get used to the sound over time and so this device stops becoming a deterrent.
There are those, however, that feel that ultrasonic pest repellents work well, so if you decide you want to try them out, do your research on different brands and read consumer reviews to make sure you are getting the best one. Its also important to note that the high frequency sound will not travel through walls and furniture, so it will not be as effective in a room where there are many items blocking the sound.
If you have a bad pest infestation, its likely that you will need more than an ultrasonic pest repellent. You may need to use a repellent that has been proven to be effective at getting rid of pests or, it might be a good idea to have a professional come and do it for you.
