Kidde GSA-PHS RAFA The W-SD355T adds thermal sensors

The W-SD355T adds thermal sensors that will alarm at a fixed temperature of 135°F (57°C)

This device does not provide supervision of the state of the relay contact

Master Firefighters’ Telephone Kit

flaming fire

KRF1000 Teryx KRX 1000 2020-2023

Kidde GSA-PHS RAFA The W-SD355T adds thermal sensorsThe Signature Series Model GSA PHS Intelligent 3D Multisensor Detector gathers analog information from each of its two fire sensing elements (photoelectric and heat) and converts it into digital signals. The detectors on board microprocessor measures and analyzes these signals separately with respect to a third element Time. We call this technology 3D. It compares the information to historical readings, time patterns, and several known fire