Siemens HFPT-11 (500-033380) Plug-In Two-Wire Thermal Detector VSP-005 This helps reduce system downtime

This helps reduce system downtime

Simplex 677-201 Sensor Base with Relay

Simplex 4902-9716 TrueAlert Speaker

Integral LED blinks green each time it receives a communication and turns red when activated

These products are electrically backward compatible with the previous generation of SpectrAlert notification appliances

Siemens HFPT-11 (500-033380) Plug-In Two-Wire Thermal Detector VSP-005 This helps reduce system downtimeSiemens HFPT 11 (500 033380) Plug In Two Wire Thermal Detector is compatible with FireFinder XLS and FS 250 control panel families (Replaced by OH921) The HFPT 11 features a microprocessor chip and highly stable solid state electronic circuitry technology.