Fluke 810SMM Sensor Magnet Mount for Fluke 810 Vibration Analyzer. Magnetic Mount for Sensor, 48 lb Pull Force, For Use With Fluke 810 Vibration Tester & 810S Vibration Tester Sensor. The Fluke 810SMM sensor magnet mount is a neat metal assembly with a precisely machined base to hold the the probe securely against the test piece. The mount is lightweight but has an extremely strong internal magnet with a pull force of 48lbs. As a result, it's virtually impossible to shake it loose, no matter what happens with the test piece. The outer housing is gnurled, affording a secure grip to the operator and ensuring that, when it's time to pack up, the mount can be removed quickly and conveniently.