The Ultrasound emitted by the machine becomes unbearable to the rodents and they try to run away. Rodents get irritated and look out for quiet safer areas. As a result of the continuous sound pressure emitted by the machines some rodents become violent hence there should be an opening like a door or a window to escape.

Post commissioning of the system sometimes shows increased rodent activities, what we say as the regular Post Commissioning Syndrome. The agitated rodents unable to bear the sound waves are disoriented and vent out their discomfort until they are flushed out or find an escape route.

Rodents stop entering the areas being protected by us, because the ultrasonic sound waves hit their eardrums and cause them considerable pain and discomfort. They do not get immune since the sound output is at varying frequencies. They do not die unless they get trapped in a particular place for days together or are under consistent exposure to ultrasonic sound.