Siemens DB-11 Detector Base

The Siemens DB-11 6-inch detector base is designed for use with Model ‘H’ series,‘11’ series, and ‘121’ series of conventional detectors. Compatible with addressable Siemens Model ‘H’ series detectors, as well as Models OH921, OP921, OOH941, OOHC941 and HI921 intelligent detectors.. Mounts on a 4-inch octagon, square or single-gang electrical box.