Siemens FP-11 (500-095112) Multi-Criteria Fire DetectorThis multi criteria fire detector features state of the art microprocessor circuitry with error checks, self diagnostic, and supervision programs, delivering reliable and accurate fire detection. The FP 11 is easily programmed and tested electronically, eliminating the need for cumbersome and unreliable mechanical programming methods and reducing installation and service costs. It is compatible with the Siemens Fire Safety Model FPI 32 upgrade kit or