Remote Control: The lock can be controlled remotely using a smart device or hand control. Heavy Duty: The tubular lock is made of durable steel and brass for heavy use. Modern Style: The lock has a sleek modern design that blends in with modern decor. Alarm Feature: The lock has an alarm feature to deter unauthorized access. Single Piece: The lock is a single piece that includes the latch and controller. The CL5210 is a heavy duty electronic tubular mortice latch. Mortice Latch Allows up to 80 User Codes Allows up to 10 one-time User Codes to be entered Over 200,000 operations from 4 x AA cells (provided) Tamper alarm and low battery warning Connections for remote release by reception desk button Alarm release included Code Free entry Lever handle lock for doors hung on the left or right Use in offices / schools / warehouses / hospitals / care homes / nurseries / hotels / leisure facilities / the home The outside lever turns freely without operating the latchbolt. When a valid code is entered and the blue LED lights, the lever will retract the latchbolt. When the door closes the spring latch will automatically lock the door. The key will open the door for management functions. The key may be used to set the lock into Code Free mode so that anyone can open the door without using a code. Code Free Mode can also be programmed at the keypad using the Master Code.The lock can store up to 80 different User Codes. Codes may be 4, 5 or 6 digits long. Programming is via the keypad, using the Master Code. The lock has fitted as standard two alarm release terminals. REM1 is used to open the lock from a reception desk button or answer phone. REM2 can be linked to an alarm system which, when activated by a momentary contact, will release the door for 30 minutes. This allows emergency personnel to enter the room to rapidly check that no one has been overlooked. Body Material: Zinc Alloy Buttons: Individual, stainless steel Classroom function: Yes Door thickness: 35mm - 65mm (1 3/8" - 2 1/2") Finish: Brushed steel, polished brass Keypad: 3 x 4 Key override: Yes Non handed: Lock will fit doors hung on the left or right Power: 4 x AA cells Spindle type: 8mm (5/16") spring loaded spindle Storeroom function: Yes Suitable for: Internal and external use Operations: 200,000 Audit Trail: No PC Programming: No