4 wire smoke detector with relay output contact can be connected with home security system with hardwired N/C or N/O input zone. 4-wire smoke detector has 2 wire for power supply of 9-24V and 2 wire for singnal transmission. The smoke detector has built-in beep and LED indication for alarm and fault reminding.
4 wire smoke detector meets the EN54, FCC etc. certificate and professional security fire standard. Two LEDs on each detector provide local 360° visible alarm indication. They flash every six 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 alarm can be reset only by a momentary power interruption.
Tags: fire alarms, smart home security, home security solutions, wireless smoke alarm systems, smoke detectors, home security company, conventional smoke detector, smoke detector, smoke alarm
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