Lost your manual?  Need a reference image for your PD® auto belay?

If so, you’re in the right place!

Twin Dolphin Online ManualOnline Manual for Twin Dolphin Timing Systems









  220i Indoor/Outdoor Manual

(Even if the cover says “Indoor Model”, you can use it for the Outdoor Model.)












  220CR-CE Manual













  220CR Manual






These documents are in pdf format and require Adobe® Acrobat Reader in order to be able to open and view them. If you don’t currently have Adobe® Acrobat Reader installed you can download it for free here.