alarm bell box

(1) Dual tamper protection from upper cover removal or removal of the bell box. Optional protection of screw loose.

(2) Equipped  with  internal  7.2V  rechargeable  battery,  SAB  mode  is  available.  Optional  VRLA  battery room is provided.

(3) Red and green status LED indications for easy status confirmation. The indications are as follows: 

       1) Red and green LEDs flash alternately means system in standby mode.

       2) Green LED flash twice quickly means no backup battery power supply.

       3)Red and green LEDs flash twice quickly and pause for 1 second means siren trigger.

       4) When main power is cut, red and green LEDs flash quickly and pause for 1 second. And siren will sound simultaneous.

(4) Piercing  siren   sound    with  high-visibility  xenon    strobe   flashes.   Twin    or  single   sounders are selectable.Trigger  signals  for  sounders  and  strobe  are  separate  and  both  negative and positive inputs are provided.

(5) 4 kinds of sounder timer selections. The default selection is 20 minutes. 5 sec (for test) 3 min, and continuous sound are selectable with jumpers.

(6) External or Internal tamper trigger is selectable.