The REVO is the only automatically locking belay device which has a completely panic-proof locking mechanism.
Weight (g): 245
Rope Range (mm): 8.5-11
The REVO has no method of over-riding the locking mechanism, during belaying, or when lowering a climber.
Bi-directional: the locking function works regardless of the rope direction.
Intuitive belaying method, which requires no changes to standard belaying technique.
No need for a specific locking karabiner.
All of these USP's contribute to make the REVO the safest belay device available.