Talstar
Yes, I've had a great experience with The Critter Guy services here in Ontario, and I appreciate how expertly and humanely they carry out their work. This is how pest control ought to work.
There are several websites that offer information on ultrasonic pest repellent. These websites include Wikipedia, Bug Info, FTC, Victor Pest, and Water Reeves.
Arsenic can be used as a pest repellent.
It's doubtful anyone is going to invest much more in them. they just don't work.
I call the pest control available here in Canada. The Critter Guy is the only pest control I trust and besides they are licensed to do it.
Here in Ontario Canada, I call the pest control person Dave, The Critter Guy. Dave, from the critter guy, is the best when it comes to wild animals and pest control. He can also answer any questions you have about wild animals and pests especially raccoons, bats, squirrels, and skunks.
If you have a problem with skunks, you better call a professional pest removal service and let them do the work. I highly recommend The Critter Guy if you're in Ontario, Canada.
What kind of device? If it's ultrasonic, not in the long run.
The best way to find the best pest removal service, is to figure out exactly what kinds of bugs the chemical they use kills. Some are specifically used for ants and cockroaches and not for mice and rats.
The best way to find pest control in your are would be to use the yellow pages. You can go to www.yellow-pages.com and search your area for pest control.
Yes it is possible to make an Electronic Pest Repellent using Arduino and possible to make ultrasound for 30khz to 200khz frequency; you must make a rectangle signal with a frequency and amplify it with transistors.