The S-Tec Duck R back up device allows you to securely attach to ropes, when used correctly it can help arrest falls if your mainline was to fail. 

The Duck R is robust and made of stainless steel with an aluminium cam. As an alternative the S-Tec ENForcer may be better for more environmentally demanding conditions as it has a stainless steel cam.

This item has been approved for use in rescue scenarios with a 2 person load up to 200kg

Certified to EN 12841 Type A, making it suitable for use as a backup device in a rope access environment.