... support 2500 cardholder, store 25,000 credit card and alarm events: 255 units can be networked.-Flexible application. Can ... opened 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- ...