DX Digital conversion kit suitable for use with Selector 3770 Series Mortice Locks. - USE FOR COMMERCIAL APPLICATIONS- digital mortice lock conversion kit.- Mortice lock not included.include: Digital codepad, mounting plate, codepad spindle, associated mounting screws and a latching adaptor.- Cylinder (for holdback if required) and door furniture (1800 or 2800 series) must be ordered separately. Mortice lock not included. Suits Selector locks with a 60, 89 and 127 mm backset. Suit door thickness 32-50 mm. 4 to 6 digit code. Clutching external knob. Stainless steel springs. Non-reversible tumblers. Suits Lockwood brass 1800 & 2800 series furniture (not included). Holdback Function: A key operated holdback function is available, this requires the inclusion of an internal standard 570 cylinder. Finished satin chrome. Lockwood Selector 3700 Series Mortice Locks Catalogue Lockwood 3700 MkII Service Manual