Topo Stop is the only full covering rodent
repelling system in the market place utilizing both high frequency ultrasonic
sound and low frequency resonance sound.When resonance- and ultrasonic sounds are jointly emitted from both type of units, all walls, floors and open spaces in a house will effectively be penetrated. This dual action makes it impossible for the rodent pest to find any sound sheltered place in the house to cling to.
The ability for two or more Topo Stops to yield jointly active sound , the unique resonance mechanism of the Mole Stop and the fact that both type of devices are environmentally safe, make us a world leading supplier of rodent control appliances.