Simplex fire alarm panels and replacement parts — about 150 products: 4100ES and 4100U master controllers, CPU cards and power supplies, 4010ES and 4007ES panels, legacy 4020, 4002 and 4005 boards, IDNet and MAPNET II interface modules, NAC extenders, audio amplifiers and firefighter phone modules, TrueAlarm smoke and heat sensors, and TrueAlert horn strobes.
Boards are matched to the full Simplex assembly number and revision, and we quote upgrade paths such as the 4020 to 4100ES controller upgrade alongside like-for-like spares.
Installation note: fire alarm, suppression and gas detection equipment must be installed, programmed and tested by qualified technicians under NFPA 72 or your local fire code, and replacement devices must be listed as compatible with the control panel they connect to.
What to include in your RFQ: the Simplex product number or board assembly number (for example 4100-3101, 566-719 or 742-342), the panel model, quantity and delivery country.
Free worldwide DDP shipping — all duties, taxes and customs clearance included in the quoted price. Quotes returned within 24 hours; company purchase orders accepted.
Request a Quote — Bulk Pricing →
Frequently Asked Questions
Do you have parts for older Simplex 4020 and 4100 panels?
Yes — slave boards, master controller assemblies, MAPNET II transceivers and power supplies for 4020 and 4100 systems are available alongside current 4100ES parts.
Can you supply TrueAlarm sensors and bases?
Yes — addressable photoelectric, heat and multi-sensor TrueAlarm heads, sensor bases and duct sensor housings for IDNet and MAPNET loops.
Do you offer Simplex voice evacuation parts?
Yes — Flex 50 and 100 W digital amplifiers, audio interface modules and ceiling speakers for 4100ES voice systems.
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