WT145 4-Wire Heat Detector with Relay Output

Product Overview
The device is intelligent sensors that utilize a state-of-the-art thermistor sensing circuit for fast response. These sensors are designed to provide open area protection with 50 foot spacing capability. The device is a rate-of-rise temperature sensor with 135°F fixed temperature alarm.The device is a rate-of-rise with fixed temperature alarm thermal detector utilizing a state-of-the-art dual thermistor sensing circuit. These detectors are esigned to provide open area protection with 50-foot spacing capability, and are to be used with compatible control panels only. Two LEDs on each detector light to provide 360°visibility of the detector indication.

Features
1. Compatible with all the security alarm system
2. Alarm Relay Output(NO/NC can be adjustable)
3. Unpolarized wire input
4. Wide range of operating voltages(9V~28VDC)
5. High precision electronic thermistor
6. Built in microprocessor intelligent software
7. Two LEDs blink standby , provide 360° visibility
8. Insect-resistant s creening
9. Twist-on mounting base with tamper lock

Technical Specifications
1. Diameter: 103mm
2. Height (including mounting base): 55 mm
3. Weight: 155 g
4. Operating Temperature Range: -10°C to 50°C
5. Operating Humidity Range: 10% to 93% Relative Humidity, Noncondensing
6. Latching Alarm: Reset by momentary power interruption

Electrical Ratings
1. Power Supply Voltage: 12 VDC (9V~ 28VDC)
2. Standby Current: 200 μA
3. Alarm Current: 45 mA @ 12VDC
4. Alarm Relay Contacts Rating: 2A@24VDC
5. Temperature Alarm Sensitivity: 57°C (135°F) A1R

Dimensions

Ordering Information

WT145 4-Wire Heat Detector with Relay Output Images