The ISC D4 Work/Rescue Descender is a heavy duty and highly durable tool used by arborists to ensure a safe and effective descent during climbing procedures. This device has a simple and easy to operate design that allows for smooth gliding, and precise control when partnered with climbing ropes. Providing the user with efficiency and reliability, this climbing gear is a perfect tool that tree professionals will appreciate.
This D4 Descender is made from high-quality material, and features an innovative cam action that holds or stops the user’s weight on the rope. It has a built-in panic safety feature that effectively prevents over-speed or uncontrolled descent, and operating the lever can provide a reliable and controlled lowering.
With its improved design, it allows a safe descent, at the same time, can be used in mechanical advantage and progress capture procedures. It can accommodate 10.5mm to 11.5mm D low stretch ropes, comes with EN12841 certification, meets ANSI requirements (ANSI Z359, NFPA 1983, EN341). This Rescue Descender has standard dimensions of 5 1/2" H by 3.25" W, and a rated load limit of 529.11 lbs. (240kgs), making it a reliable utility for the tree professional.