The DSM ESC from Jeti is dual input redundant electronic switch designed to operate with included magnetic key. The advantage of an electronic switch is that it offers a virtual unlimited ON/OFF cycles, unlike mechanically operated switches.
The redundant DSM ESC switch automatically monitors and switches between two power supplies (Two Rx Batteries, Rx Battery & ESC or Two ESCs) keeping your system operational. In a case of using two ESCs the throttle signal from the receiver is supplied to both controllers simultaneously.