How does Sonar and Ultra Sound devices compare to the PEST OFFense® Unit?

Sonar and Ultrasound devices use sound technology to work. With Sonar/Ultrasound devices, you need on unit per room because sound waves are blocked by walls and other objects within a room, creating barriers. PEST OFFense® uses the wiring within the walls so you only need one unit for an average size one story home.

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