![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
![Fire Warning Sensor Sensitive Stability Belt Relay Smoke Detector Fire Alarm Switch Smoke Sensor Module - Instrument Parts & Accessories - AliExpress Fire Warning Sensor Sensitive Stability Belt Relay Smoke Detector Fire Alarm Switch Smoke Sensor Module - Instrument Parts & Accessories - AliExpress](https://ae01.alicdn.com/kf/H527db29072644bc28c777528e91ce578v.jpg_640x640Q90.jpg_.webp)
Fire Warning Sensor Sensitive Stability Belt Relay Smoke Detector Fire Alarm Switch Smoke Sensor Module - Instrument Parts & Accessories - AliExpress
![AS-SD202-4L Smoke Detector 4 Wires Relay Output - China 4 Wire Smoke Detector, Relay Smoke Detector | Made-in-China.com AS-SD202-4L Smoke Detector 4 Wires Relay Output - China 4 Wire Smoke Detector, Relay Smoke Detector | Made-in-China.com](https://image.made-in-china.com/2f0j00moefsHuBnRbD/AS-SD202-4L-Smoke-Detector-4-Wires-Relay-Output.jpg)
AS-SD202-4L Smoke Detector 4 Wires Relay Output - China 4 Wire Smoke Detector, Relay Smoke Detector | Made-in-China.com
![Smoke and Heat Detector FT-143 Relay output 4-wire With base smoke heat compound fire detection system [FT-143] - $11.00 : China top brand burglar and fire alarm systems, New technology burglar and Smoke and Heat Detector FT-143 Relay output 4-wire With base smoke heat compound fire detection system [FT-143] - $11.00 : China top brand burglar and fire alarm systems, New technology burglar and](https://vedardalarm.com/images/alarm_sensor/YT-142.jpg)