PEST OUT -TM-315

Ultrasonic Rodent & Pest  Repellents are electronic transmitters of high-frequency sound (well above the 20 KHz frequency which is the upper limit of the hearing range of the human ear). They emit intensive sound at high decibel levels (sound pressure) that is audible and painful to rodents but is inaudible and harmless to humans. The rodents will usually leave the area being protected by the ultrasound. They do not get killed, they are only repelled from the ultrasonic zone.

ultrasonic sounds, (sounds above 20,000Hz), are nearly silent to humans and most animals. Ultrasound cannot travel through walls or closed doors. The signals bounce off these hard surfaces causing a ricochet effect. Ultrasonic sounds are absorbed by soft materials such as curtains, furniture, and carpet, which in turn diminishes the effectiveness of the unit. Shadow areas may occur around corners or behind home furnishings. Sonic sounds are lower frequency, audible, sounds that carry further and are effective in repelling larger pests such as rats and squirrels. These lower-frequency sounds are effective in protecting larger areas.