Ultrasonic pest relling devices needs electricity as a source of power to function effectively. It needs to be plugged into an electrical outlet, and then it starts to emit a high frequency noise that is hard for humans and pets to hear. The sound and wavelengths emitted by the repeller is designed in such a way that causes physiological response in pests. The main name for it is audiogenic seizure response. The noise disorientate the pests to a point whereby they begin to run in random directions, become confused, convulse and eventually die from cerebral hemorrhaging. If you are thinking of using electronic repellent for chasing pests out of your attic, then you must follow these guidelines:


In order to achieve best and effective results from using ultrasonic pest repellents is by combining the process with trapping. This is because the sound waves coming from the ultrasonic pest repellents causes the pests to scurry around which will eventually drive them right into the traps you have already set up.


Continued use of this ultrasonic repellent device over a long period makes it lose its effectiveness on pests. This is because pests like rodents become familiar with the sound coming from the devices over time; therefore, the results may be temporary.


In as much as the ultrasonic pest repellent helps to get rid of pests, it also necessary to note that this device cannot totally eradicate rodents and insect pests. Even the research that is done on this device shows some percentage of decrease, which means it might not totally work the way you want it to.


The sound waves coming from the ultrasonic pest repellents are mostly short-range and very weak; therefore it is easily blocked by walls, furniture and corners. To test out the location of the device, simply place a lamp nearer to it, turn off all the other lights, and note the beams and shadows from the lamp. This shows that, the repellent sound waves will only be active where the light reaches.

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