System Sensor D4P120 SF 11/02 Alternately

Alternately

The yellow LEDs are typically used to annunciate the active status of supervisory analog devices or standard supervisory zones or the trouble condition of alarm devices/zones

VT1300CS Custom Sabre 2010-2014

(normally open) contact devices

They easily attach to the SpectrAlert Advance universal mounting plate

System Sensor D4P120 SF 11/02 AlternatelyD4P120 detectors are designed to operate on 24V DC V AC or 120V AC. Alarm and supervisory relay contacts are available for control panel interface (alarm initiation), HVAC control, and other auxiliary functions. Auxiliary relays are provided for fan shut down. Detector interconnection provides signaling of up to 50 other detectors in the loop for multiple fan shut down. These detectors are not designed for 2 wire applications.