Question about Microwave Ovens
The "cell phone" test is a fraud. Cell phones operate on a frequency range much lower than microwaves (800 MHz for phones and 2.5 GHz for the ovens), and the metal screen in the microwave door won't affect them. The phone will ring loud and clear and it doesn't mean the oven is leaking microwaves.
You can buy a "microwave leakage test card" at some stores that supposedly change color when you hold in front of the door if the oven is leaking microwaves. This is also a fake. It actually responds to heat, on the thory that if heat is escaping around the door then microwaves are too. That's wrong.
The only sure way to test for microwave leakage is with a standardized leakage test meter. This is a fairly expensive electronic device. You really don't need to worry about microwave leakage unless the door of the oven is visibly out of alignment so that it isn't closing and sealing properly. If the door hasn't been getting slammed shut and the oven hasn't been dropped, everything should be fine. Take the oven to a service shop for a leakage test if you are concerned.
One final note: Microwave energy drops off rapidly with distance. Just don't stand right in front of the oven while it's running.
Hope this helps ease your mind. Thanks for using Fixya!
Posted on Feb 02, 2010
Service folks use a special radiation meter to inspect for radiation leakage. A cheap alternative would be a neon lamp that would light from leakage around the door seals, but there would have to be a fair amount of radiation present to operate the lamp, and you don't want to be near any oven leaking that much radiation. Usually, if you inspect the door seals for damage or food deposits, that will serve to limit radiation to safe levels.
Posted on Feb 02, 2010
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Posted on Jan 02, 2017
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