The 819N is a self-locking panic lock with multiple locking with an electromechanically coupled external handle for single-leaf doors. It meets the requirements for burglar-resistant doors, fire doors, emergency exits and panic doors in accordance with EN 179 and EN 1125. A mechanical sequence control reliably prevents the bolts from being accidentally released when the door is open. The lock can be used universally as a DL/DR lock thanks to the universal cross latch, adjustable control latch and panic side.|The operating mode of working current or closed current can be changed on the lock. Integrated control electronics for external control or for connection to the ASSA ABLOY Hi-O bus system.|Integrated monitoring functions through contactless sensors, for status query via the external OneSystem IO module:|Door status via strike plate contact|Bolt locked and bolt locked|Locking cylinder monitoring|Handle follower monitoring inside and outside|Status of handle coupling coupled/disengaged