Simplex, now part of Johnson Controls, is one of the most widely installed fire alarm brands in North America. Simplex systems are found in hospitals, universities, airports, high rises and industrial plants, and they are maintained for decades rather than replaced. That long service life is exactly why the parts are hard to find, and it is what this collection is aimed at.
With well over a thousand Simplex line items in stock, we cover:
- Simplex smoke detectors and sensors - photoelectric, heat, combination photoelectric and heat, and carbon monoxide sensors, plus replacement cartridges
- Sensor bases, including standard, sounder and relay bases
- Duct detectors, duct housings and duct covers
- Addressable modules - individual addressable modules, zone adapter modules, relay modules and NAC extenders
- Single and double action pull stations, break rods and station keys
- Horns, strobes, horn strobes and speaker strobes, wall and ceiling mount
- Device covers, cover plates and trim in red and white
Much of what we hold is discontinued or superseded Simplex stock kept specifically for existing installations. If a part is not listed, send the number through our quote page.

Simplex
Simplex 4100-3102 Mapnet Module
Sale price$655.35
Regular price$786.42
Contact Us for Alternatives
Simplex
Simplex 4100-1328 Primary Amplifier Output Voltage 25 VRMS 120 VAC
Sale price$1,235.75
Regular price$1,482.90
Not in stock - available on backorder - lead time on request
Simplex
Simplex 4100-1326 Digitalflex 50W Amp
Sale price$1,083.25
Regular price$1,299.90
Not in stock - available on backorder - lead time on request
Simplex
Simplex 4098-9688 Duct Detector
Sale price$241.35
Regular price$289.62
Contact Us for Alternatives
Simplex
Simplex 4010-9810 Dact Common Event Reporting
Sale price$270.40
Regular price$324.48
Not in stock - available on backorder - lead time on request
Simplex
Simplex 4009-9401 TrueAlert Addressable Controller
Sale price$1,192.85
Regular price$1,431.42
Not in stock - available on backorder - lead time on request
Simplex
Simplex 4007-9806 Serial Dact Module
Sale price$317.60
Regular price$381.12
Not in stock - available on backorder - lead time on request
Simplex
Simplex 4007-9101 4007ES Hybrid Fire Alarm Control Panel, Four Conventional NACs, Red
Sale price$1,613.95
Regular price$1,936.74
In Stock
Simplex
Simplex 2975-9461 Red Surface Mount Box for 4606 Touchscreen Annunciator
Sale price$112.45
Regular price$134.94
In Stock
Simplex
Simplex 2190-9163 Control Relay Zone Adapter Module
Sale price$120.00
Regular price$144.00
Contact Us for Alternatives
Simplex
Simplex 2084-9008 Firefighter Phone Assembly
Sale price$387.55
Regular price$465.06
In Stock
Simplex
Simplex 2081-9280 Battery Mounting Cabinet Only
Sale price$1,291.70
Regular price$1,550.04
In Stock
Simplex
Simplex 2099-9759 Pull Station, Double Action, Pre-Signal
Sale price$113.75
Regular price$136.50
In Stock
Simplex
Simplex 2190-9162 Signal Zone Adapter Module, Class B Style Y, Flush Cover, MAPNET II
Sale price$139.35
Regular price$167.22
Only 2 units left
Simplex
Simplex 4098-9613 SSD Heat Detector 135 ROR
Sale price$24.30
Regular price$29.16
Contact Us for Alternatives
Simplex
Simplex 4098-9614E SSD Heat Detector
Sale price$40.90
Regular price$49.08
Only 43 units left
Simplex
Simplex 4098-9615 Heat Detector Head, 200F Fixed/Rate-of-Rise, 2-Wire
Sale price$44.40
Regular price$53.28
Only 9 units left
Simplex
Simplex 4903-9198 Non-Addressable Round Strobe TrueAlert
Sale price$107.25
Regular price$128.70
Only 6 units left
Simplex
Simplex 4904-9178 Visible Notification Appliance Wall-Mount
Sale price$85.00
Regular price$102.00
Contact Us for Alternatives




