The word passive in this scenario can be defined as “having no moving parts”.
These types of devices are highlighted by a mechanism that pinches the rope between the carabiner and the device, assisting in halting the movement of the rope, although it’s important to mention here that no belay device is “hands-free”. The advantages of passive assisted braking devices over their active counterparts are that they are lightweight, suitable for any kind of climbing, and can often be used to rappel on two strands of rope. The CT Click Up (Single Rope) and CT Alpine Up (Dual Rope) are trusted semi-auto blocking device, ideal for all types of climbing.