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 Discovery Open-Area Voice Alarm Devices** provide clear voice messages, alarm tones, and optional visual indication for reliable emergency notification in commercial, residential, and industrial fire alarm systems.

The **Apollo Discovery Category O Sounder VAD Base with Isolator 45681-700** combines audible alarm notification, white-flash visual warning, detector mounting, and short-circuit isolation in one compact addressable device. Suitable for commercial, healthcare, educational, residential, and industrial applications, it helps improve occupant notification, protect the fire alarm loop, and support a cleaner installation.

Discover the **Apollo Discovery Waterproof Manual Call Point 58200-950 and 58200-951 with isolator**, designed for reliable manual fire alarm activation in outdoor, industrial, commercial, and moisture-prone locations.

Discover the **Apollo Discovery Manual Call Point 58200-910 and 58200-908 with isolator**, designed for reliable addressable fire alarm activation, accurate device identification, easy resetting, and improved loop protection in commercial and industrial buildings.

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.

The **Apollo Discovery Optical/Heat Multisensor Detector 58000-700** combines optical smoke and thermistor heat sensing to support reliable early fire detection, flexible operating modes, accurate device identification, and improved false alarm management in commercial, residential, healthcare, hospitality, and industrial buildings.

The Apollo Discovery Optical Smoke Detector 58000-600APO provides intelligent addressable smoke detection for offices, hotels, hospitals, schools, warehouses, and commercial buildings. Featuring optical light-scattering technology, five selectable operating modes, and automatic drift compensation, it helps deliver reliable early warning and improved fire alarm system performance.

Explore the Simplex 4098-5601 Smoke Detector and 4098-9774 TrueAlarm Photoelectric Sensor, designed to support reliable smoke detection, intelligent monitoring, accurate alarm identification, and easier fire alarm system maintenance for commercial and industrial applications.

The Simplex 4099-9004 Single-Action Addressable Manual Pull Station provides fast and reliable manual fire alarm activation for commercial, institutional, and industrial buildings. It features a clear pull-down mechanism, individual device addressing, and compatibility with Simplex IDNet and MAPNET II fire alarm systems.