The standard D4 Work/Rescue Descender (RP880) has proven to be a popular Descender amongst Rope Access & Rescue users, all over the world. Many users value the extra peace of mind of having a panic-brake function. Feedback gathered from highly qualified and experienced ‘Pro’ users highlighted a demand for a device which does not incorporate a panic-brake function. Enter the D4 PRO! The D4 PRO Descender is the same great Work/Rescue Descender, but without the panic brake. This can be particularly useful on longer descents and in rescue/belay applications, where a broader ‘sweet spot’ is welcomed. As the D4 PRO does not incorporate a panic-brake, it is not possible for the device to fully meet the criteria of NFPA and ANSI Standards. The D4PROis fully certified to EN 12841 (a panic brake is not a compulsory criteria of this standard).