Climbing Technology SPARROW Self Braking DescenderSelf braking descender for work on ropes, which allows the operator to lower themselves on the working line, to position himself on the working line and to ascend the same rope. Field of Application: Rescue descender certified to EN 341: 2011 2A, work load limit 150 kg with a maximum descent height of 100 m, only to be used with the PATRON PLUS 11 WITH END LOOPS rope 11 mm Rope adjustment descender device certified to EN 12841: 2006 C, work load limit