Finding the right fire alarm replacement part starts with knowing your system. Our brand-specific replacement guides walk you through the most common parts, popular model numbers, and tips for identifying exactly what you need. Select your brand below to get started.
Browse by Brand
Simplex
2,600+ parts in stock. Covers 4100ES, 4100U, 4010, 4020, and legacy systems. TrueAlarm detectors, IDNet modules, signal cards, and more.
Edwards / EST
2,000+ parts in stock. Covers EST3, EST4, iO, IRC-3, and QuickStart systems. SIGA detectors, Genesis appliances, and panel boards.
Notifier
1,000+ parts in stock. Covers NFS2-3030, NFS-320, NFS-640, and AFP-1010 systems. FlashScan detectors, FCM/FMM modules, and power supplies.
System Sensor
1,100+ parts in stock. SpectrAlert Advance horn/strobes, i3 detectors, duct detectors, and bases compatible with most major panels.
Siemens
990+ parts in stock. Covers Desigo, MXL, FireFinder XLS, and Pyrotronics systems. Detectors, Z-series strobes, modules, and boards.
Gamewell-FCI
540+ parts in stock. Covers E3 Series, 7100 Series, and Flex panels. MCS detectors, addressable modules, and pull stations.
Silent Knight
530+ parts in stock. Covers Farenhyt IFP-1000, IFP-2100, 5820XL, and 5808 systems. IDP detectors, replacement boards, and accessories.
Hochiki
200+ parts in stock. Covers FireNET panels, Ekho wireless, and Silent Knight-compatible detectors. Intelligent and conventional devices.
Can’t Find Your Brand?
We stock over 20,000 fire alarm parts across dozens of brands including Fire-Lite, Kidde, Mircom, Potter, Bosch, Gentex, Apollo, and more. Use our search bar to find any part by number, brand, or description — or call us at 1-844-839-6844 and our team will help you locate exactly what you need.