The RSG-2 should be the same as the Sota Silver Pulser with a few more features. It is nothing like the Megamagpulser which is a coil induction magnetic device.
The closest thing to a Megamagpulser would be a Bob Beck Magnetic Pulse Generator. Sota MPG5.
The RSG- 2 may help with Arthritis by removing pathogens from the body "in the blood" plus Colloidal Silver .