The Straightpoint TIMH25TRD 25te Tension and rope pay in/out & speed with wireless output for wire rope Ø16-Ø26mm dia - 2789139 is a Wireless Running Line Tensiometer or RLTM built with dockside, marine, offshore, towage and salvage applications in mind. It is particularly useful where there is no anchor or dead end on the line to rig a Straightpoint Radiolink or Loadlink digital dynamometer to measure tension force at speeds up to 20m/min or 65ft/min.