The Easy Code Range has all the operating features of the Conventional Code change range but has been designed to simplify the code changing process by eliminating the need to rearrange detainers within the mechanism. By simply pushing in and rotating the dials on the back of the outside unit with a flat screwdriver changes the code. · · · Supplied with 60mm backset deadlocking tubular latch · · Hold back function on internal knob allows unrestricted access · · Successfully fire tested to EN1634-1 for use on fire doors up to 1 hour · · Suitable for external use having completed a 240 hour salt spray test to EN1670 · · Over 8000 non-sequential codes · · Internal Unit provides egress by a large turn knob · · Suitable for timber doors 35-65mm thick · · Compact and robust zinc die cast body · · Satin chrome/polished brass finish · · Size: 158 x 45 x 44mm