Warning for incorrect connection of a fire hydrant

There have been accidents when the carabiner has been in the wrong position.

Warning for misuse of support ropes

If engaged incorrectly, some carabiner models at the end of the support line can disengage themselves in special situations.

Petzl Mini Traxion and Pro Traxion warning

When using thick ropes and high loads at both ends, the locking cam may not work in some situations.

Petzl Reverso warning

When securing 2 people at the same time, wet and narrow ropes can cause problems with the automatic locking system.