The Tyco 4B (517.050.041) Universal Detector Base is used when a short circuit isolator or continuity functionality is not required.
Continuity, Isolator and Universal variants
Quick and easy to install
Compatible with 800, 814, and 850 Series Detectors
Park position for testing
Optional Detector locking device
Slim 4-inch profile
Snap-fit to Ceiling Tile Adaptor.