Posted by emraware on
URL: https://www.es-forum.com/inquiry-re-MCS-EMF-resources-tp1554844p1554868.html

Interesting observation:
* A battery-powered clock doesn't register on Trifield meter.
* However, a battery-powered hand-sewing machine does register on Trifield meter.  

How does this happen? I read this:
"Direct current motors, when they're spinning, put out alternating fields as well as DC fields, which are detectable on an AC gaussmeter when their rpms are within the meter's frequency range."
I read this from http://electromagnetichealth.org/wp-content/uploads/2008/11/emf_test_of_2007_toyota_prius_hybrid-3.pdf:

Good thing that Singer is selling the manual hand-crank sewing machines again. Completely mechanical...  

Otherwise, if the battery is not in use, maybe another consideration is thechemicals in the battery?

--- In [hidden email], Loni <loni326@...> wrote:
>
> I have a battery operated mattress pad I would love to use in the winter when sleeping outdoors but I react to it so can't use it. Loni
>