Does Pest Offense work?
On One Hand: It Is Effective in Lab Tests.Pest Offense uses ultrasonic waves to repel animals, spiders and insects. A study conducted by the U.S. Department of Agriculture found these devices to have an repellent effect on animals as long as there were no electrical or radio interferences or solid obstacles between the animal and the device.On the Other: It May Not Be As Effective At Home.Although there is some effectiveness in a controlled laboratory setting, these devices may not be as effective at home. The U.S. Federal Trade Commission notes that animals can get used to the sound, rendering the device ineffective.Bottom LinePest Offense does work in strict laboratory settings.
