... Every detector can be set to doorbell when disarmed, every detector can be set to locally alarm(do ... every remote can be set to request assistance siren on/off6. Siren could be set to sound when away ... patient or important place. When one zone is set to be watchdog zone, during a programmed time, ... connection, door bell, every zone type can be seperately program, very flexiable, unique watchdog, install ...