The Simplex TrueAlarm 4098-9775, 4098-9789, and 4098-9780 sensor bases provide secure mounting, addressable communication, remote LED support, and relay options for compatible smoke, heat, and multisensor devices. Proper selection, installation, testing, and routine inspection help ensure reliable fire alarm operation and system compatibility.

The **Apollo Addressable XPERT 7 Base 45681-210** provides secure detector mounting, organized loop wiring, and accurate address configuration for compatible Apollo fire detection systems. Its XPERT addressing technology helps simplify detector replacement, reduce addressing errors, and support reliable fire alarm monitoring in commercial, residential, institutional, and industrial buildings.