Hi Brooke,
> Hi Tom:
>
> They do use two different seismometers at each location, a large movement
> and a sensitive.
> http://www.prc68.com/I/Seismometer.shtml
>
> Have Fun,
>
> Brooke Clarke
> http://www.PRC68.com
> http://www.end2partygovernment.com/Clarke4Congress.html
It is a bit fun that the Earthquake Detector product "QA-2000" shares
product name with the Honeywell (Sundstrand) Inertial accelerometer
"QA-2000"...
http://quakealarm.com/
http://www.inertialsensor.com/inertial-navigation-accelerometers.php
--
Björn
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