![DC9V-36V 4 Wire Photoelectric Smoke Detector Fire Alarm with Relay Output - China Conventional Smoke Alarm, 2 Wire Smoke Alarm | Made-in-China.com DC9V-36V 4 Wire Photoelectric Smoke Detector Fire Alarm with Relay Output - China Conventional Smoke Alarm, 2 Wire Smoke Alarm | Made-in-China.com](https://image.made-in-china.com/44f3j00gamqJfhwkpcd/DC9V-36V-4-Wire-Photoelectric-Smoke-Detector-Fire-Alarm-with-Relay-Output.webp)
DC9V-36V 4 Wire Photoelectric Smoke Detector Fire Alarm with Relay Output - China Conventional Smoke Alarm, 2 Wire Smoke Alarm | Made-in-China.com
![Manufacture 12V 4 Wire Smoke Detector Fire Alarm System for Hospital/Factory/Shopping Mall - China Smoke Detector and Lpcb Approve Smoke Detector Manufacture 12V 4 Wire Smoke Detector Fire Alarm System for Hospital/Factory/Shopping Mall - China Smoke Detector and Lpcb Approve Smoke Detector](https://image.made-in-china.com/2f0j00wOoivCaIlcqP/Manufacture-12V-4-Wire-Smoke-Detector-Fire-Alarm-System-for-Hospital-Factory-Shopping-Mall.jpg)
Manufacture 12V 4 Wire Smoke Detector Fire Alarm System for Hospital/Factory/Shopping Mall - China Smoke Detector and Lpcb Approve Smoke Detector
![Replacing 4-wire smoke alarm with 3-wire alarm but can't figure out how to connect wires : r/firealarms Replacing 4-wire smoke alarm with 3-wire alarm but can't figure out how to connect wires : r/firealarms](https://external-preview.redd.it/PEyYUHBFuDl5DXT7VcBTVR6nb905pqdYxBYis5AHU2o.jpg?auto=webp&s=47fe1f068616e4ca83a58620a8f815de1873cd85)
Replacing 4-wire smoke alarm with 3-wire alarm but can't figure out how to connect wires : r/firealarms
![4-Wire Smoke & Heat Detector with Relay Output FT143|Professional Conventional and Intelligent Fire Alarm System|CFT Fire Alarms 4-Wire Smoke & Heat Detector with Relay Output FT143|Professional Conventional and Intelligent Fire Alarm System|CFT Fire Alarms](http://www.cftfirealarms.com/upload/day_140530/201405301411185170.jpg)
4-Wire Smoke & Heat Detector with Relay Output FT143|Professional Conventional and Intelligent Fire Alarm System|CFT Fire Alarms
![FT143 4-Wire Smoke & Heat Detector with Relay Output|Angel Technologies Hongkong Ltd. / ATL /Fire alarm manufacturer FT143 4-Wire Smoke & Heat Detector with Relay Output|Angel Technologies Hongkong Ltd. / ATL /Fire alarm manufacturer](http://www.atlfire.hk/images/upload/big_20160520141443.jpg)
FT143 4-Wire Smoke & Heat Detector with Relay Output|Angel Technologies Hongkong Ltd. / ATL /Fire alarm manufacturer
![Cheap Prices Smart 4wire 12v Network Fire Alarm Smoke Detector With relay output SR-811-4 – Fire security factory more than 15 year Cheap Prices Smart 4wire 12v Network Fire Alarm Smoke Detector With relay output SR-811-4 – Fire security factory more than 15 year](https://www.firealarmfactory.com/uploadfile/2023/04/25/1682392578763685.jpg)