Assisted-braking resistor to extend rope friction when there’s a large weight difference between belayer and lead climber. Within the event of a fall, the OHM increases the amount of rope friction in order 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 keep an eye on OHM is connected on the first bolt Within the safety chain
Must a lead climber fall on the first bolt, the OHM significantly reduces the risk of a conceivable ground fall Rope handling when belaying a lead climber not affected (no additional friction when paying out rope) Really useful weight difference (lead climber > belayer): 10 – 40 kg
Minimum weight belayer: 40 kg For single ropes from 8.9 – 11 mm
CE marking: CE 0123, Weight 470 g