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Contact Load: Low Power
Protect Feature: 1
Size: 103x55mm
Theory: Voltage Relay
Brand Name: zoanco
Usage: Protective
Model Number: 143
Place of Origin: China (Mainland)
power: 9 to 28 VDC Volts Non-polarized
Alarm Relay Contact Ratings: 1A@ 24V DC
Maximum Alarm Current (LED on): <45mA
Standby Current: <200uA
Smoke Alarm Sensitivity: 15-0.3dB/m(with smoke sensor
TemperatureAlarmSensitivity: 57C (135F)(withheatsensor

Specifications

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Conventional Fire Alarm Control System: FT143 4-wire Smoke & Heat Detector with Relay output 
GeneralFT143 Smoke &Heat Detector with relay output, Operates by Advanced MCU Expert Algorithm Software.Key Specifications/Special Features
They work perfectly with all conventional intelligent fire control panels
Advanced MCU Expert Algorithm Software.
Easy installation and maintenance
Durable sensor head, no need for replacement
SMD circuit board design-satisfactory quality and reliability guaranteed

SPECIFICATIONS 
Operating Voltage Range: 9 to 28 VDC Volts Non-polarized 
Standby Current: 200A 
Maximum Alarm Current (LED on): 45mA 
Alarm Relay Contact Ratings: 2A@ 24V DC 
Operating Humidity Range: 95%RH(40C2C) Relative Humidity, Non-condensing 
Operating Temperature Range: -10C to 50C (14F to 122F) 
Smoke Alarm Sensitivity: 1.06.26%FT 
Temperature Alarm Sensitivity: 57C (135F) A1R (only for with heat sensor) 
Height: 55 mm installed in Base 
Diameter: 103 mm 
3. INSTALLATION 
NOTE: All wiring must conform to applicable local codes, 
Ordinances, and regulations. 
 
INSTALL the DETECTOR BASE 
1. Open area smoke or heat detectors are intended for 
Mounting on a ceiling or a wall in accordance with the fire 
Standard in your country. 
2. Attach mounting base to ceiling or wall. the base of 
the detector can be mounted directly onto an electrical 
Junction box such as an octagonal (75mm, 90mm or 
100mm), a round (75mm), or a square (100mm) box 
without using any type of mechanical adapter. 
3. Position all wires flat against terminals, and fasten the 
Wires on the terminals, See Figure 1. 
4. Terminals function description: 
 
Terminal 1: Relay Output -COM 
Terminal 2: Relay Output NO/NC (default NO) 
Terminal 3: DC Power  
Terminal 4: DC Power + 

 DC powered 4wire Smoke Hear Detector with Relay Output work with all conventional intelligent fire control