... as door controller, bell or alarm output; the sensor can be defined as fire signal.-Professional access control function: ... time-out,the door shut time-out,intrusion alarm, duress alarm, tamper alarm, fire alarm etc. FeaturesSupport Chinese/English showSupport the computer ... recordsBuilt-in the doorbell control, built-in bludgon into alarm, a silver/black. specification Storage time:10 yearsOff- ...