Do these electronic pest gadgets really work?

Question:We have roaches all over our yard from oak trees and wet conditions and now we are having problems with rats. I just saw some devices at Wal-Mart that are used to put out a impluse (?) and is used to drive away pests. Do these really work? Can they be used inside your home or garage?

Answers:
I bought a plug in model (rid-x) from QVC. I plugged it in and never had another spider in my house. { I have no idea if it would work outdoors.} This one emits a vibration at a level that insects can't stand. It doesn't kill any of them...just makes them move away.

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ask if you can return the device if you can then buy it and try it and if it don't work after two week just return.

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