A reader emailed me worried that perhaps a specific wireless technology called DECT (Digital Enhanced Cordless Technology) in a baby monitor might be dangerous to his baby. It seemed to me that this was probably bogus, but that the question was more TechSkeptic’s area, so I emailed him the question. He replied with a detailed post - DECT scares. His conclusion:
If you arent worried about your TV, or sleeping near your cell phone, or having heated sheets or leaving your computer on, then you really shouldn't worry about the effects of a DECT phone. There is simply no mechanism by which it can bother you, and better than that, there is really no evidence that the actual tiny emmissions from any radio device actually affects anyone, mechanism or not.
But you should read the full article. It includes easy to follow explanations of, for example, microwave radiation, and why microwaves from a DECT device will not cook you although a microwave oven does cook food. (Hint: the cooking is not due to the effects of ionizing radiation.)
When anyone starts talking about radiation and radio wave scares, electro-sensitivity or anything similar, the DECT scares post would be a good place to refer them.