OhmAssisted braking resistor for increasing rope friction when there is a large weight difference between the belayer and lead climber. In the event of a fall, the OHM increases the amount of rope friction so that a lighter belayer can hold a heavier lead climber without difficulty. Belayer requires significantly less hand braking force to arrest a fall Lowering a heavier climber is much easier to control OHM is attached at the first bolt in the safety