these numbers in perspective from a safety standpoint - the gauss level at the surface of a Qualcomm dual
band cellular phone held against your ear is 25 gauss and a Verizon flip
cellular phone (LG) is 48 gauss. Both of these cell phones exceed the
magnetic field strength present 7" from the cylinder guard of the of a VP 708A
Vortex Lateral Tumble Stirrer.
*Note that distance between the magnet surface and the
surface of the deck varies for each magnetic tumble stirrer design and thus the gauss
levels at the surface of the deck varies. Note that the VP 710E-1, VP 710C-1 and the VP 710SM3P
both use the stronger 48 MGO magnets
Note that the VP 710SC (custom) uses a longer
magnet than the VP 710S and therefore will project the field farther.
Noted that the magnets used in the VP 710S and
VP 710SC are rated at 45 MGO and the VP 710S-2 magnets are 48 MGO.
The Above Graph is also available with a linear scale
The VP 710A with its multiple magnetic cylinders has less
magnetic "bloom" because the adjacent magnetic fields pull it down.
STIR ELEMENT DATA
To see how these gauss
reading translate into practical data in Tumbling Stir Elements
see the following link.
Makers of cardiac pacemakers have placed magnetic switches
in them that can be activated when the pacemaker is in a 5 gauss magnetic field.
The critical 5 gauss line varies from 5.5" to 22.8" above the deck or
cylinder guard with our
stirrers. The graph indicates that the magnetic field falls off very fast with
distance. However as a safety factor we recommend that people with
pacemakers keep at least 36" or 91 cm from the Alligator Vertical Tumble Stirrers
and the Vortex Lateral Tumble Stirrer. The
cardiac pacemaker company
has a webpage and
pdf that discusses the 5 gauss line in more detail.