The device is photoelectric detector uses a state-of-the-art optical sensing chamber.  This detector is designed to provide open area protection and to be used with most conventional fire alarm control panel.

Two LEDs on each detector provide local 360° visible alarm indication.  They flash every 3~5 seconds indicating that power is applied and the detector is working properly.  The LEDs latch on in alarm.  LEDs will be off when a trouble condition exists indicating that the detector sensitivity is outside the listed limit.  The detector can be reset only by a momentary power interruption.

This is a long-interval reflection line infrared beam smoke detector which must be used together with a reflector. In case of smoke on the light path of the detector, the signal arriving at the receiver is reduced; when the light reduction rate reaches the preset threshold, the detector will produce the alarm signal; when the light beam is completely blocked, the detector will produce the fault signal to prevent the false alarm caused by non-fire blockage. Thanks to the built-in uniprocessor with excellent performance, the detector has a powerful analysis and judgment capability and can automatically complete the systematic debug, the compensation for external environmental parameter variation, and the judgment of fire alarm and fault, and also can give status indication through the indicator lamp and the signal output terminal.

The detector adopting a brand-new and reasonable structural design is sensitive in adjustment, correct in positioning, easy in installation, and simple and convenient in debugging method. The detector contains a group of alarm passive normally open contacts and a group of fault alarm normally closed contacts as well as 4-20mA standard signal output to be conveniently connected with the fire alarm system and DCS system of plants of fire fighting equipment.

This conventional manual call point designed for conventional fire alarm system for reporting fire or emergency condition by its PUSH IN/PULL DOWN handle latches.  One 470 ohm resistor is used on the PCB board between Zone+ and Zone- when the switch inside is closed.  So this conventional manual call point is only used with conventional fire alarm control panel.

NERD360 Fire Alarm Bells are specially designed for fire alarm applications. The gongs are made of selected alloy steel to give the loud, resonant tones necessary in fire alarm systems. Two gong sizes are available to overcome different ambient noise level. The Fire Alarm Bells are of the underdome type with heavy duty mechanisms. Each bell is supplied with a mounting plate that fits any standard single-gang opening .