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They don't. If they do, results will only be short term.
Just a question you are giving this person an answer and you tell them in no uncertain terms "they don't." but then follow up with 'If they do" ? is this your expert answer? or did you even test out your answer before posting it? I have tested them out and have had great results in chasing away critters as soon as they are plugged in! Now to answer your question about how they work, it is an ultrasonic frequency that is emitted that rodents do not like, much like a dog whistle. keep it plugged in and no rodents, unplug them and no more dog whistle to keep them away! simple as that!
What else can I help you with?
HOW to make a rat killer?
aba ewan
What is a rat killer?
something that kills rats :)
In Ratatouille what was wrong with the apple?
it was poisoned with rat killer
What is the best rat killer that doesn't cause harm?
All rat killers are harmful. Try a large mouse trap or "rat trap with a spring" and put peanut butter on it. and be sure to keep the kids away. Poison will not work as well as a trap.
What is working principal of electric geyser?
geyser eletronic circuit
If you ate rat poison and died could it be human poison instead?
No, it could not, because the poison was specifically designed to kill rats, and was developed as a rat poison/killer, not a human poison/killer. It would still be considered rat poison, even if the human died from the rat poison.
What is the killer rats name?
There's no such species as "killer rats." It's just a generic term for any rat that is deadly or thought to be deadly.
How much time will it take to die after eating rat killer?
not to long, but you'll suffer
What is eletronic communication?
phones and stuff
Does eletronic signals have physical mass?
no
How Does Rat Root Cure people?
Rat Root Can Cure People By Chewing On The Root, The Way To Make The Rat Root Work Is By Swallowing The Juice And It May Taste Weird But It Does Work Though!.
Do all eletronic devices use integrated circuits?
No, they do not.
