Accessories
Surveillance accessories support reliable system deployment, from mounting hardware and enclosures to power components and installation materials. Select the right supporting equipment to ensure durability, safety, and long-term performance.
Deployment Considerations
- Environmental protection and weather resistance
- Mounting stability and load support
- Power and voltage compatibility
- Cable management and termination quality
- Compliance with local safety standards
No Bots, Just Experts
Free pre-sales support for every customer — product questions, BOM quotes, compatibility checks, price confirmation — answered by a senior specialist within one business day. Paid services available like full system design, remote installation, and more. Engineering design time is $175/hour, qty 1 = 1 hour. Hardware buyers get up to one hour ($175) credited back on their order.
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Showing Results for Accessories
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System Sensor
SKU: CO-PLATE
System Sensor CO-PLATE CO Detector Replacement Plate
TCP/IP CO detector replacement plate for networked fire safety systems
In stock · Ships same business day$48.99 -
System Sensor
SKU: CO1224TR
System Sensor CO1224TR 4-Wire CO Detector with Form C Relay
4-wire CO detector with Form C relay for fire alarm integration
In stock · Ships same business day$151.20 $95.99 Save $55.21 -
System Sensor
SKU: COSMO-2W
System Sensor COSMO-2W i4 Series 2-Wire CO/Smoke Detector with Sounder
Dual smoke/CO detector on single 2-wire loop with integrated sounder
In stock · Ships same business day$220.64 $144.99 Save $75.65 -
System Sensor
SKU: COSMO-4W
System Sensor COSMO-4W 4-Wire Combination CO/Smoke Detector with Sounder
4-wire combo CO/smoke detector with built-in sounder for conventional panels
In stock · Ships same business day$223.86 $147.99 Save $75.87 -
System Sensor
SKU: COSMOD2W
System Sensor COSMOD2W i4 Series 2-Wire Interface Module
2-wire interface module for fire alarm system integration at 35VDC
In stock · Ships same business day$112.47 $76.99 Save $35.48 -
System Sensor
SKU: COSMOD4W
System Sensor COSMOD4W i4 Series 4-Wire Interface Module
i4 Series 4-wire interface module for addressable fire detection networks
In stock · Ships same business day$109.78 $73.99 Save $35.79 -
System Sensor
SKU: D2
System Sensor D2 2-Wire Photoelectric Duct Smoke Detector
Photoelectric duct detector, 2-wire conventional, 29VDC for HVAC systems
In stock · Ships same business day$227.00 $169.99 Save $57.01 -
System Sensor
SKU: D4120
System Sensor D4120 4-Wire Photoelectric Duct Smoke Detector
4-wire photoelectric duct detector, 24 VDC, direct mount to HVAC
In stock · Ships same business day$375.14 $242.99 Save $132.15 -
System Sensor
SKU: D4120W
System Sensor D4120W 4-Wire Watertight Duct Smoke Detector
4-wire duct detector with NEMA 4 watertight housing for humid HVAC environments
In stock · Ships same business day$505.70 $324.99 Save $180.71 -
System Sensor
SKU: D4240
System Sensor D4240 4-Wire Duct Smoke Detector 120VAC
4-wire duct smoke detector for supply/return air HVAC monitoring
Special Order · Ships in 2-3 weeks$327.19 $211.99 Save $115.20 -
System Sensor
SKU: D4P120
System Sensor D4P120 Duct Detector Power Board Component
TCP/IP duct detector power board, 29VDC output for System Sensor assemblies
Special Order · Ships in 2-3 weeks$251.77 $160.99 Save $90.78 -
System Sensor
SKU: D4S
System Sensor D4S 4-Wire Duct Smoke Detector
4-Wire duct smoke detector with TCP/IP network connectivity for HVAC monitoring
In stock · Ships same business day$245.29 $156.99 Save $88.30 -
System Sensor
SKU: DECAL-W
System Sensor DECAL-W White Letter Decal Kit for Red Devices
White letter decals for System Sensor red security devices
Special Order · Ships in 2-3 weeks$94.00 $60.99 Save $33.01 -
System Sensor
SKU: DECAL-WC
System Sensor DECAL-WC White Letter Decal Kit for Red Ceiling Devices
White letter decal kit for System Sensor red ceiling devices
Special Order · Ships in 2-3 weeks$141.00 $90.99 Save $50.01 -
System Sensor
SKU: DH400OE-1
System Sensor DH400OE-1 Weatherproof Outdoor Duct Detector Enclosure
Sealed outdoor duct detector enclosure for rooftop HVAC smoke detection
In stock · Ships same business day$618.14 $400.99 Save $217.15 -
System Sensor
SKU: DST1
System Sensor DST1 InnovairFlex Sampling Tube - Up to 1 Foot Duct
Duct sampling tube for InnovairFlex fire detection up to 1 foot
Special Order · Ships in 2-3 weeks$17.83 $11.99 Save $5.84






