Fire-Lite W-SD355T Intelligent wireless photo/heat detector.

W-SD355 and W-SD355T addressable, wireless photoelectric detectors use a state of the art photoelectric sensing chamber to provide open area protection. The W-SD355T adds thermal sensorsthat will alarm at a fixed temperature of 135⁰F (57⁰C). The W-SD355 and W-SD355T communicate with the fire alarm control panel (FACP) through a wireless mesh network to the W-GATE wireless gateway. Note: Must be used with an ES-200X, ES-50X, MS-9600(UD)LS or MS-9200UDLS FACP.