Showing Results for Fire & Life Safety
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System Sensor 5601P 135F Fixed/Rate-of-Rise Mechanical Heat Detector
Dual-mode 135°F mechanical heat detector for two/four-wire fire loops
- Dual fixed-temperature (135°F) and rate-of-rise detection reduces nuisance alarms.
- Runs on 35VDC across two-wire or four-wire fire alarm circuits for flexible integration.
- Electronics-free mechanical design eliminates firmware dependencies and processor latency.
Usually Ships in 2-3 Weeks Free shipping over $499$30.45 $22.99 Save $7.46 -
Save $7.99
System Sensor 5602 194F Fixed/Rate-of-Rise Mechanical Heat Detector
Two-wire mechanical heat detector for conventional fire alarm circuits
- Dual fixed/rate-of-rise detection responds to both steady heat and rapid temperature spikes.
- Two-wire conventional circuit at 35VDC connects directly to existing FACP without added modules.
- Mechanical thermal element operates without electronic polling, reducing points of failure.
Usually Ships in 2-3 Weeks Free shipping over $499$30.98 $22.99 Save $7.99 -
Save $7.99
System Sensor 5604 194F Fixed Temperature Mechanical Heat Detector
Fixed temperature heat detector for conventional 2-wire fire alarm systems
- Operates on 35VDC conventional 2-wire loops—no addressable module or converter needed.
- Box form factor supports ceiling or wall mounting in warehouses and mechanical rooms.
- Mechanical thermal element requires zero calibration or configuration post-installation.
Usually Ships in 2-3 Weeks Free shipping over $499$30.98 $22.99 Save $7.99 -
Save $17.71
System Sensor 5621 135F Dual-Circuit Fixed/Rate-of-Rise Heat Detector
135°F dual-circuit heat detector for conventional and addressable systems
- Dual-circuit design supports both conventional and addressable panels without relay adapters.
- 135°F fixed-temp plus rate-of-rise detection reduces nuisance alarms in mixed-use spaces.
- Operates at 35VDC, compatible with standard conventional fire alarm control panels.
Usually Ships in 2-3 Weeks Free shipping over $499$56.70 $38.99 Save $17.71 -
Save $20.24
System Sensor 5622 194F Dual-Circuit Fixed/Rate-of-Rise Heat Detector
Dual-circuit heat detector with fixed and rate-of-rise sensing for fire alarm systems
- Dual fixed-temp and rate-of-rise sensing catches both slow smoldering and fast fires.
- Operates at 35VDC for direct integration with conventional fire alarm control panels.
- Ceiling-mount installation follows NFPA 72 spacing standards for commercial deployments.
Usually Ships in 2-3 Weeks Free shipping over $499$57.23 $36.99 Save $20.24 -
Save $19.24
System Sensor 5623 135F Dual-Circuit Fixed Temperature Heat Detector
135°F fixed-temperature heat detector with dual-circuit conventional and addressable wiring
- Fixed 135°F thermal setpoint eliminates false alarms in dusty or vapor-heavy spaces.
- Dual-circuit design supports both two-wire conventional and addressable loops on one SKU.
- Rated for 35VDC operation; confirm panel voltage and loop config before deployment.
Usually Ships in 2-3 Weeks Free shipping over $499$57.23 $37.99 Save $19.24 -
Save $19.24
System Sensor 5624 194F Dual-Circuit Fixed Temperature Heat Detector
Dual-circuit fixed temperature heat detector with TCP/IP networking
- Fixed 194°F activation threshold eliminates sensitivity tuning in high-heat zones.
- Operates at 35VDC from the FACP—no external power supply or special config needed.
- Dual-circuit design supports conventional loop wiring for alarm and supervisory states.
Usually Ships in 2-3 Weeks Free shipping over $499$57.23 $37.99 Save $19.24 -
Save $0.93
System Sensor A77-AB2 Retrofit Adapter Bracket for i3 Series
TCP/IP retrofit adapter bracket for System Sensor i3 Series fire panels
- Designed for i3 Series panels, ensuring mechanical and electrical compatibility out of the box.
- Rated for 35VDC operation, matching standard fire alarm power architectures without extra regulation.
- Mounts to a 3½-inch octagonal back box; fits wall, ceiling, or rack deployments.
Usually Ships in 2-3 Weeks Free shipping over $499$12.92 $11.99 Save $0.93 -
Save $28.65
System Sensor APA151 Remote Annunciator with Piezo Alert
Remote annunciator with piezo sounder for 24 VDC fire alarm systems
- Operates on 24 VDC supervised power for continuous panel-monitored circuit health.
- Integrated piezo sounder adds local audible output without additional signal runs to panel.
- Compact 14.38 × 5 × 2.5 in body suits wall or enclosure mounting in secondary locations.
Usually Ships in 2-3 Weeks Free shipping over $499$83.64 $54.99 Save $28.65 -
Save $0.24
System Sensor B114LP 120VAC Low-Profile Plug-In Detector Base
Low-profile 120VAC plug-in base with TCP/IP networking for confined spaces
- Runs on 120VAC building power, eliminating separate low-voltage supply infrastructure.
- TCP/IP connectivity enables direct network integration without proprietary polling loops.
- Low-profile form mounts on 4-inch square/octagon box (1.5-inch min depth) for tight spaces.
Usually Ships in 2-3 Weeks Free shipping over $499$243.23 $242.99 Save $0.24 -
Save $0.52
System Sensor B114LPBT 24VAC/DC Low-Profile Plug-In Detector Base
Low-profile 24VAC/DC plug-in base with TCP/IP networking
- Accepts 400 Series detectors (1400, 1412B, 1424) with no field wiring modifications.
- Dual-voltage 24VAC/DC operation integrates with standard fire alarm power supplies.
- Twist-on bracket with SEMS screw terminations enables tool-minimal ceiling/wall install.
Usually Ships in 2-3 Weeks Free shipping over $499$176.51 $175.99 Save $0.52 -
Save $0.01
System Sensor B116LP 2-Wire Low-Profile Plug-In Detector Base with ...
2-wire low-profile detector base, 24VDC, plug-in System Sensor modules
- Plug-in head design lets you swap detector modules without rewiring the base.
- Rated 24VDC for direct integration with conventional 2-wire fire alarm control panels.
- Tool-free removable cover and insect screen simplify field cleaning to cut nuisance alarms.
Usually Ships in 2-3 Weeks Free shipping over $499$115.00 $114.99 Save $0.01 -
Save $78.79
System Sensor BEAMLRK Active Infrared Beam Detector Long-Range
Long-range active IR beam detector with relay output for perimeter protection
- Covers detection spans from 16 ft to 328 ft, suiting warehouses and high-ceiling spaces.
- Relay output integrates directly into any 24–32 VDC UL-listed fire alarm or security panel.
- Rated for –22°F to 131°F operation, supporting outdoor perimeter and harsh-environment installs.
Usually Ships in 2-3 Weeks Free shipping over $499$235.78 $156.99 Save $78.79 -
Save $0.46
System Sensor BEAMMMK Beam Detector Multi-Mount Kit
Multi-position mounting kit for System Sensor TCP/IP beam detectors
- Supports wall, ceiling, and structural column mounting for BEAM1224 series detectors.
- Operates across -30 to 55°C, suitable for warehouses, garages, and loading docks.
- Enables precise transmitter/reflector alignment without special tools during installation.
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Save $0.22
System Sensor BEAMSMK Beam Detector Surface-Mount Kit
Surface-mount kit for System Sensor beam detectors on 32VDC networks
- Secures BEAM1224 series detectors on walls or ceilings without special tools.
- Supports 15–32 VDC operation across commercial, warehouse, and industrial sites.
- Enables beam detector alignment across optical paths from 16 ft. to 328 ft.
Usually Ships in 2-3 Weeks Free shipping over $499$84.21 $83.99 Save $0.22 -
Save $0.98
System Sensor CO-PLATE CO Detector Replacement Plate
TCP/IP CO detector replacement plate for networked fire safety systems
- Replaces CO1224T, CO1224TR, and CO1224A faceplates without full device re-certification.
- Mounts to a standard single-gang back box and runs on the existing 24VDC supply.
- Maintains UL 2075 (US) and CSA 6.19-01 (Canada) compliance after plate swap.
Usually Ships in 2-3 Weeks Free shipping over $499$48.97 $47.99 Save $0.98 -
Save $54.21
System Sensor CO1224TR 4-Wire CO Detector with Form C Relay
4-wire CO detector with Form C relay for fire alarm integration
- 24VDC 4-wire design integrates directly into conventional or addressable fire alarm panels.
- Form C relay output enables dry-contact alarm signaling without intermediate interface modules.
- 10-year end-of-life timer and RealTest capability reduce commissioning and maintenance overhead.
Usually Ships in 2-3 Weeks Free shipping over $499$151.20 $96.99 Save $54.21 -
Save $73.65
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
- Photoelectric smoke and electrochemical CO sensing share one 2-wire loop address.
- Integrated sounder eliminates external horn modules, reducing device count per zone.
- Mounts to 3.5"/4" octagonal, single-gang, 4" square, or round ceiling boxes.
Usually Ships in 2-3 Weeks Free shipping over $499$220.64 $146.99 Save $73.65 -
Save $73.87
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
- Combines CO and ionization smoke detection in one unit, reducing loop device count.
- Built-in sounder eliminates separate notification appliance wiring at each install point.
- 35VDC 4-wire design integrates directly with conventional fire alarm control panels.
Usually Ships in 2-3 Weeks Free shipping over $499$223.86 $149.99 Save $73.87 -
Save $35.48
System Sensor COSMOD2W i4 Series 2-Wire Interface Module
2-wire interface module for fire alarm system integration at 35VDC
- Operates at 35VDC for direct integration with conventional fire alarm control panels.
- 2-wire protocol support simplifies retrofit wiring into existing detection architectures.
- Compact form factor mounts in standard electrical enclosures without dedicated power drops.
Usually Ships in 2-3 Weeks Free shipping over $499$112.47 $76.99 Save $35.48 -
Save $35.79
System Sensor COSMOD4W i4 Series 4-Wire Interface Module
i4 Series 4-wire interface module for addressable fire detection networks
- Bridges 4-wire detection circuits into i4 Series addressable networks without rewiring.
- Operates at 35VDC, enabling direct integration with i4 Series loop power supplies.
- Supports i3 Series detectors and multi-panel distributed fire safety deployments.
Usually Ships in 2-3 Weeks Free shipping over $499$109.78 $73.99 Save $35.79 -
Save $151.01
System Sensor D2 2-Wire Photoelectric Duct Smoke Detector
Photoelectric duct detector, 2-wire conventional, 29VDC for HVAC systems
- Photoelectric sensing reliably detects smoldering fires in HVAC ductwork.
- 2-wire circuit cuts conduit runs—power and signaling share one wire pair.
- 29VDC operation integrates with legacy and modern panels without added modules.
Usually Ships in 2-3 Weeks Free shipping over $499$303.00 $151.99 Save $151.01 -
Save $130.15
System Sensor D4120 4-Wire Photoelectric Duct Smoke Detector
4-wire photoelectric duct detector, 24 VDC, direct mount to HVAC
- Photoelectric sensing targets smoldering-fire smoke particles before spread through HVAC zones.
- 4-wire, 24 VDC design integrates with conventional and addressable fire alarm control panels.
- IP66-rated housing mounts directly into standard ductwork at 14.38 × 5 × 2.5 in footprint.
Usually Ships in 2-3 Weeks Free shipping over $499$375.14 $244.99 Save $130.15 -
Save $200.47
System Sensor D4120W 4-Wire Watertight Duct Smoke Detector
4-wire duct detector with NEMA 4 watertight housing for humid HVAC environments
- NEMA 4 watertight enclosure blocks moisture and dust, preventing false alarms in high-humidity ductwork.
- Separate 4-wire alarm and supervisory circuits let HVAC shutdown logic run independently from audible alarms.
- 29VDC hardwired operation integrates directly into conventional fire alarm panels—no protocol converters needed.
Usually Ships in 2-3 Weeks Free shipping over $499$528.46 $327.99 Save $200.47 -
Save $126.92
System Sensor D4240 4-Wire Duct Smoke Detector 120VAC
4-wire duct smoke detector for supply/return air HVAC monitoring
- 4-wire supervised wiring supports alarm, trouble, and reset on conventional or addressable panels.
- Runs on 120VAC, eliminating the need for a separate low-voltage power supply in HVAC installations.
- Compact 14.38" x 5" x 2.5" housing fits standard supply or return air duct cutouts without modification.
Usually Ships in 2-3 Weeks Free shipping over $499$341.91 $214.99 Save $126.92 -
Save $101.11
System Sensor D4P120 Duct Detector Power Board Component
TCP/IP duct detector power board, 29VDC output for System Sensor assemblies
- Supplies regulated 29VDC to photoelectric sensor heads in D4120 duct detector assemblies.
- Operates across –4°F to 158°F, supporting installations in harsh mechanical environments.
- ¾-inch conduit knockout and terminal-block wiring simplify 4-wire field connections.
Usually Ships in 2-3 Weeks Free shipping over $499$263.10 $161.99 Save $101.11 -
Save $98.34
System Sensor D4S 4-Wire Duct Smoke Detector
4-Wire duct smoke detector with TCP/IP network connectivity for HVAC monitoring
- Operates at 29VDC, matching standard fire alarm panel power supplies with no external converter.
- TCP/IP connectivity enables real-time network alerts alongside hardwired 4-wire panel signaling.
- Rated for –20 to 70°C operation, supporting reliable HVAC duct deployment across harsh environments.
Usually Ships in 2-3 Weeks Free shipping over $499$256.33 $157.99 Save $98.34 -
Save $0.24
System Sensor DECAL-W White Letter Decal Kit for Red Devices
White letter decals for System Sensor red security devices
- Labels System Sensor red SpectrAlert Advance devices without tools or modifications.
- Adhesive backing works on both indoor and outdoor device surfaces after simple prep.
- Compatible exclusively with System Sensor red device line — verify model before ordering.
Usually Ships in 2-3 Weeks Free shipping over $499$98.23 $97.99 Save $0.24 -
Save $0.36
System Sensor DECAL-WC White Letter Decal Kit for Red Ceiling Devices
White letter decal kit for System Sensor red ceiling devices
- Labels red SpectrAlert Advance ceiling strobes and horn-strobes without affecting strobe output.
- Rated for indoor and outdoor use across a wide temperature range of −35°F to 151°F.
- Tool-free application to device lens or trim ring; full adhesion achieved within 24 hours.
Usually Ships in 2-3 Weeks Free shipping over $499$147.35 $146.99 Save $0.36 -
Save $241.97
System Sensor DH400OE-1 Weatherproof Outdoor Duct Detector Enclosure
Sealed outdoor duct detector enclosure for rooftop HVAC smoke detection
- Weatherproof sealed housing blocks rain, snow, dust, and UV for outdoor HVAC installs.
- Compact 14.38 × 5 × 2.5 in footprint fits wall, ceiling, or rack mounting on rooftop ducts.
- Operates at 29 VDC with no gateway hardware needed for standard fire alarm integration.
Usually Ships in 2-3 Weeks Free shipping over $499$645.96 $403.99 Save $241.97 -
Save $6.64
System Sensor DST1 InnovairFlex Sampling Tube - Up to 1 Foot Duct
Duct sampling tube for InnovairFlex fire detection up to 1 foot
- Samples duct airflow from 100–4,000 FPM, covering low-velocity returns to high-velocity supply runs.
- Tool-free front or rear installation via patented quick-connect; no threaded fittings required.
- Operates at 29VDC and integrates directly into 4-wire photoelectric fire alarm circuits.
Usually Ships in 2-3 Weeks Free shipping over $499$18.63 $11.99 Save $6.64 -
Save $25.40
System Sensor DST10 InnovairFlex Sampling Tube - 8 to 12 Foot Duct
Aspirating smoke sampling tube for 8–12 ft ductwork runs with TCP/IP
- Covers 8–12 ft duct spans, fitting medium-run HVAC zones without custom hardware.
- TCP/IP communication integrates directly into networked InnovairFlex detection systems.
- Compact 14.38 × 5 × 2.5 in rectangular form installs in tight ductwork with minimal clearance.
Usually Ships in 2-3 Weeks Free shipping over $499$73.39 $47.99 Save $25.40 -
Save $8.53
System Sensor DST3 InnovairFlex Sampling Tube - 2 to 4 Foot Duct
Duct sampling tube for 2–4 ft runs, TCP/IP integrated, 29VDC
- Covers 2–4 ft duct runs at 29VDC, eliminating extra detector heads per zone.
- Supports air velocities 100–4,000 ft/min, matching standard commercial HVAC ranges.
- Tool-free front or back install via ¾-in conduit knockout cuts deployment time.
Usually Ships in 2-3 Weeks Free shipping over $499$29.52 $20.99 Save $8.53 -
Save $10.64
System Sensor DST5 InnovairFlex Sampling Tube - 4 to 8 Foot Duct
4-to-8-foot duct sampling tube for networked HVAC fire detection
- Adjusts from 4 to 8 feet to cover variable duct widths without replacing hardware.
- Tool-free snap-in mount to D4120 housing cuts installation time in tight duct access.
- Supports air velocities from 100–4,000 FPM across –4°F to 158°F operating range.
Usually Ships in 2-3 Weeks Free shipping over $499$35.63 $24.99 Save $10.64 -
Save $8.03
System Sensor EOLR-1 End-of-Line Power Supervision Relay
End-of-line relay detects open/short circuits in fire alarm branches
- Detects open and short circuits at branch termination, reporting faults to the panel instantly.
- Monitors power continuity on supervised branches to flag voltage loss before detectors are affected.
- Compatible with conventional and hybrid addressable/conventional architectures for flexible deployment.
Usually Ships in 2-3 Weeks Free shipping over $499$38.02 $29.99 Save $8.03 -
Save $4.49
System Sensor ETX InnovairFlex Exhaust Tube 12-Inch
12-inch flexible exhaust tube for System Sensor ETX air sampling
- Flexible 12-inch tube routes exhaust air where rigid piping is impractical.
- Rated for –4°F to 158°F and 0–95% RH, supporting harsh HVAC environments.
- Mounts to ¾-inch conduit knockout on InnovairFlex D4120 housings, no tools needed.
Usually Ships in 2-3 Weeks Free shipping over $499$14.48 $9.99 Save $4.49








