The D4 Work/Rescue Descender is an evolutionary development in the world of Descenders!
The D4 has a 240kg Working Load Limit, which means that it is suitable for 2 man rescue. The D4 features a progressive cam action, which offers precise control at all speeds.
The D4 meets the requirements of EN12841, NFPA 1983 & ANSI Z359 and is suitable for use on 10.5 – 11mm EN1891 rope.