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  • STI-1229-HAZ STI

    STI
    Original price $108.77 - Original price $108.77
    Original price
    $108.77
    $108.77 - $108.77
    Current price $108.77

    Stopper Dome for Strobe w/Enc Bkbx - NEMA 4X Hazardous Locations

    Original price $108.77 - Original price $108.77
    Original price
    $108.77
    $108.77 - $108.77
    Current price $108.77
    Sold out
  • STI-1331 STI

    STI
    Original price $21.17 - Original price $21.17
    Original price
    $21.17
    $21.17 - $21.17
    Current price $21.17

    Universal Stopper Spacer, 1.5" (37mm)

    Original price $21.17 - Original price $21.17
    Original price
    $21.17
    $21.17 - $21.17
    Current price $21.17
  • STI-13320FR STI

    STI
    Original price $154.79 - Original price $154.79
    Original price
    $154.79
    $154.79 - $154.79
    Current price $154.79

    Universal Stopper Dome Cover w/Enc Fl Bkbx, Horn, Red Housing, Fire Label

    Original price $154.79 - Original price $154.79
    Original price
    $154.79
    $154.79 - $154.79
    Current price $154.79
  • STI-14220FR STI

    STI
    Original price $127.00 - Original price $127.00
    Original price
    $127.00
    $127.00 - $127.00
    Current price $127.00

    Universal Stopper Low Profile Cover w/Spacer, Horn, Red Housing, Fire Label

    Original price $127.00 - Original price $127.00
    Original price
    $127.00
    $127.00 - $127.00
    Current price $127.00
    Sold out
  • STI-14320CK STI

    STI
    Original price $146.71 - Original price $146.71
    Original price
    $146.71
    $146.71 - $146.71
    Current price $146.71

    Universal Stopper Low Profile Cover with Enclosed Flush Back Box, Horn, Custom Label, Black

    Original price $146.71 - Original price $146.71
    Original price
    $146.71
    $146.71 - $146.71
    Current price $146.71
  • STI-14320FR STI

    STI
    Original price $145.59 - Original price $145.59
    Original price
    $145.59
    $145.59 - $145.59
    Current price $145.59

    Universal Stopper Low Profile Cover w/Enc Fl Bkbx, Horn, Red Housing, Fire Label

    Original price $145.59 - Original price $145.59
    Original price
    $145.59
    $145.59 - $145.59
    Current price $145.59
  • STI-3004 STI

    STI
    Original price $7.43 - Original price $7.43
    Original price
    $7.43
    $7.43 - $7.43
    Current price $7.43

    Rigid Conduit Gasket (3/4" pipe) for Stopper II & Weather Stopper

    Original price $7.43 - Original price $7.43
    Original price
    $7.43
    $7.43 - $7.43
    Current price $7.43
    Sold out
  • STI-3104 STI

    STI
    Original price $36.92 - Original price $36.92
    Original price
    $36.92
    $36.92 - $36.92
    Current price $36.92

    Conduit Spacer, for 3/4" rigid pipe, incl. STI-3004, Clear for Stopper II & Weather Stopper

    Original price $36.92 - Original price $36.92
    Original price
    $36.92
    $36.92 - $36.92
    Current price $36.92
    Sold out
  • STI-4100 STI

    STI
    Original price $51.53 - Original price $51.53
    Original price
    $51.53
    $51.53 - $51.53
    Current price $51.53

    Break Glass Stopper Large

    Original price $51.53 - Original price $51.53
    Original price
    $51.53
    $51.53 - $51.53
    Current price $51.53
  • STI-4130 STI

    STI
    Original price $63.90 - Original price $63.90
    Original price
    $63.90
    $63.90 - $63.90
    Current price $63.90

    Break Glass Stopper Large w/Red Conduit Spacer (SUB-900-R)

    Original price $63.90 - Original price $63.90
    Original price
    $63.90
    $63.90 - $63.90
    Current price $63.90
    Sold out
  • STI-6720 STI

    STI
    Original price $39.17 - Original price $39.17
    Original price
    $39.17
    $39.17 - $39.17
    Current price $39.17

    Keys Under Plexiglas

    Original price $39.17 - Original price $39.17
    Original price
    $39.17
    $39.17 - $39.17
    Current price $39.17
    Sold out
  • STI-7511C STI

    STI
    Original price $71.70 - Original price $71.70
    Original price
    $71.70
    $71.70 - $71.70
    Current price $71.70

    Polycarbonate Enclosure w/Open Bkbx for Fl Mt Apps & Exterior Thumb Lock

    Original price $71.70 - Original price $71.70
    Original price
    $71.70
    $71.70 - $71.70
    Current price $71.70
    Sold out
  • STI-7551 STI

    STI
    Original price $812.35 - Original price $812.35
    Original price
    $812.35
    $812.35 - $812.35
    Current price $812.35

    LOCKABLE ENCLOSURE, INTERNAL DIMENSIONS 24.7 L X 19.7W X 7.3D, WITH THUMB LOCK

    Original price $812.35 - Original price $812.35
    Original price
    $812.35
    $812.35 - $812.35
    Current price $812.35
    Sold out
  • STI-9602 STI

    STI
    Original price $48.64 - Original price $48.64
    Original price
    $48.64
    $48.64 - $48.64
    Current price $48.64

    Steel Web Stopper, Low Profile, Surface Mt

    Original price $48.64 - Original price $48.64
    Original price
    $48.64
    $48.64 - $48.64
    Current price $48.64
  • STI-9621 STI

    STI
    Original price $44.54 - Original price $44.54
    Original price
    $44.54
    $44.54 - $44.54
    Current price $44.54

    Motion Detector Damage Stopper 7.00 X 5.75 X 4.50"

    Original price $44.54 - Original price $44.54
    Original price
    $44.54
    $44.54 - $44.54
    Current price $44.54
    Sold out
  • STI-9708 STI

    STI
    Original price $47.95 - Original price $47.95
    Original price
    $47.95
    $47.95 - $47.95
    Current price $47.95

    Horn/Strobe/Speaker Damage Stopper-6.09"-White

    Original price $47.95 - Original price $47.95
    Original price
    $47.95
    $47.95 - $47.95
    Current price $47.95
  • STI-9713 STI

    STI
    Original price $41.77 - Original price $41.77
    Original price
    $41.77
    $41.77 - $41.77
    Current price $41.77

    Steel Web Stopper for Photoelectric Smoke Detector, Fl Mt

    Original price $41.77 - Original price $41.77
    Original price
    $41.77
    $41.77 - $41.77
    Current price $41.77
    Sold out
  • STI-9717 STI

    STI
    Original price $41.48 - Original price $41.48
    Original price
    $41.48
    $41.48 - $41.48
    Current price $41.48

    Speaker/Strobe Damage Stopper, Fl Mt (Not UL Listed)

    Original price $41.48 - Original price $41.48
    Original price
    $41.48
    $41.48 - $41.48
    Current price $41.48
    Sold out
  • STI-9729 STI

    STI
    Original price $80.21 - Original price $80.21
    Original price
    $80.21
    $80.21 - $80.21
    Current price $80.21

    7" x 7" x 7", Wire Cage

    Original price $80.21 - Original price $80.21
    Original price
    $80.21
    $80.21 - $80.21
    Current price $80.21
    Sold out
  • STI-9754 STI

    STI
    Original price $48.96 - Original price $48.96
    Original price
    $48.96
    $48.96 - $48.96
    Current price $48.96

    STROBE WIRE GUARD, WALL MOUNT, WHITE

    Original price $48.96 - Original price $48.96
    Original price
    $48.96
    $48.96 - $48.96
    Current price $48.96
  • STI-EM111504 STI

    STI
    Original price $77.29 - Original price $77.29
    Original price
    $77.29
    $77.29 - $77.29
    Current price $77.29

    Metal Protective Cabinet

    Original price $77.29 - Original price $77.29
    Original price
    $77.29
    $77.29 - $77.29
    Current price $77.29
    Sold out
  • STI-EM121204 STI

    STI
    Original price $59.39 - Original price $59.39
    Original price
    $59.39
    $59.39 - $59.39
    Current price $59.39

    Metal Protective Cabinet;

    Original price $59.39 - Original price $59.39
    Original price
    $59.39
    $59.39 - $59.39
    Current price $59.39
  • STI-EM151804 STI

    STI
    Original price $100.48 - Original price $100.48
    Original price
    $100.48
    $100.48 - $100.48
    Current price $100.48

    Metal Protective Cabinet; Must buy in Multiples of 2

    Original price $100.48 - Original price $100.48
    Original price
    $100.48
    $100.48 - $100.48
    Current price $100.48
    Sold out
  • STI-SA5600-B STI

    STI
    Original price $70.03 - Original price $70.03
    Original price
    $70.03
    $70.03 - $70.03
    Current price $70.03

    Select-Alert Siren/Strobe - Rectangle, Blue

    Original price $70.03 - Original price $70.03
    Original price
    $70.03
    $70.03 - $70.03
    Current price $70.03
    Sold out
  • STRR GENTEX

    GENTEX
    Original price $144.46 - Original price $144.46
    Original price
    $144.46
    $144.46 - $144.46
    Current price $144.46

    (917-0072-002) Single/Multiple Station Smoke Alarm, Integral Heat Thermal, Temporal 3 Audible Signal

    Original price $144.46 - Original price $144.46
    Original price
    $144.46
    $144.46 - $144.46
    Current price $144.46
  • SW SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $29.15 - Original price $29.15
    Original price
    $29.15
    $29.15 - $29.15
    Current price $29.15

    STROBE, STANDARD CD, WHITE

    Original price $29.15 - Original price $29.15
    Original price
    $29.15
    $29.15 - $29.15
    Current price $29.15
    Sold out
  • SWL-P SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $92.03
    Original price $92.03 - Original price $92.03
    Original price $92.03
    Current price $88.49
    $88.49 - $88.49
    Current price $88.49

    Product OverviewThe System Sensor SWL-P is a white wall-mount strobe designed to provide reliable visual notification in fire alarm systems. Featur...

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    Original price $92.03
    Original price $92.03 - Original price $92.03
    Original price $92.03
    Current price $88.49
    $88.49 - $88.49
    Current price $88.49
    Save $3.54 Save $0.00
  • SWLED-P SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $73.04
    Original price $73.04 - Original price $73.04
    Original price $73.04
    Current price $66.10
    $66.10 - $66.10
    Current price $66.10

    Product Overview The System Sensor L-Series LED Strobes deliver enhanced performance, flexibility, and energy efficiency for indoor notification ap...

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    Original price $73.04
    Original price $73.04 - Original price $73.04
    Original price $73.04
    Current price $66.10
    $66.10 - $66.10
    Current price $66.10
    Sold out
  • SYSTEM SENSOR 2151

    SYSTEM SENSOR
    Original price $77.17 - Original price $77.17
    Original price
    $77.17
    $77.17 - $77.17
    Current price $77.17
    DISCONTINUED

    Smoke Detector Head, Photo, Low-Profile

    Original price $77.17 - Original price $77.17
    Original price
    $77.17
    $77.17 - $77.17
    Current price $77.17
  • System Sensor 2W-B

    SYSTEM SENSOR
    Original price $62.18 - Original price $62.18
    Original price
    $62.18
    $62.18 - $62.18
    Current price $62.18

    Product Overview The i3 series detectors feature a plug-in design with pre-wirable bases, large wire entry ports, and in-line SEMS terminals for ne...

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    Original price $62.18 - Original price $62.18
    Original price
    $62.18
    $62.18 - $62.18
    Current price $62.18
    Sold out
  • SYSTEM SENSOR 2WT-B

    SYSTEM SENSOR
    Original price $58.12 - Original price $58.12
    Original price
    $58.12
    $58.12 - $58.12
    Current price $58.12

    Product Overview The System Sensor 2WT-B is a 2-wire photoelectric i3 smoke and heat detector that combines installation ease, intelligence, and in...

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    Original price $58.12 - Original price $58.12
    Original price
    $58.12
    $58.12 - $58.12
    Current price $58.12
  • SYSTEM SENSOR 4W-B

    SYSTEM SENSOR
    Original price $57.39 - Original price $57.39
    Original price
    $57.39
    $57.39 - $57.39
    Current price $57.39

    Product OverviewThe System Sensor i3 4W-B is a 4-wire smoke detector that exemplifies the i3 series’ core principles: installation ease, intelligen...

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    Original price $57.39 - Original price $57.39
    Original price
    $57.39
    $57.39 - $57.39
    Current price $57.39
    Sold out
  • System Sensor 4WT-B

    SYSTEM SENSOR
    Original price $69.75 - Original price $69.75
    Original price
    $69.75
    $69.75 - $69.75
    Current price $69.75

    I³ PHOTO DETECTOR, 4-WIRE, 12/24 VDC, PHOTO THERMAL.

    Original price $69.75 - Original price $69.75
    Original price
    $69.75
    $69.75 - $69.75
    Current price $69.75
    Sold out
  • System Sensor 4WTAR-B

    SYSTEM SENSOR
    Original price $139.37 - Original price $139.37
    Original price
    $139.37
    $139.37 - $139.37
    Current price $139.37

    Product Overview The System Sensor i3 4WTAR-B is a 4-wire smoke detector with an integrated 85 dB sounder and Form C relay, designed for easy insta...

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    Original price $139.37 - Original price $139.37
    Original price
    $139.37
    $139.37 - $139.37
    Current price $139.37
  • SYSTEM SENSOR 4WTR-B

    SYSTEM SENSOR
    Original price $108.21 - Original price $108.21
    Original price
    $108.21
    $108.21 - $108.21
    Current price $108.21

    Product OverviewThe System Sensor i3 4WTR-B is a 4-wire smoke detector with integrated sounder and relay, designed to deliver easy installation, in...

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    Original price $108.21 - Original price $108.21
    Original price
    $108.21
    $108.21 - $108.21
    Current price $108.21
    Sold out
  • SYSTEM SENSOR 5251H

    SYSTEM SENSOR
    Original price $153.47 - Original price $153.47
    Original price
    $153.47
    $153.47 - $153.47
    Current price $153.47

    Product OverviewThe System Sensor 5251 series consists of intelligent thermal sensors equipped with an advanced thermistor sensing circuit for rapi...

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    Original price $153.47 - Original price $153.47
    Original price
    $153.47
    $153.47 - $153.47
    Current price $153.47
  • SYSTEM SENSOR 5601P

    SYSTEM SENSOR
    Original price $24.23 - Original price $24.23
    Original price
    $24.23
    $24.23 - $24.23
    Current price $24.23

    Product OverviewThe System Sensor 5600 series provides a versatile range of thermal detectors suitable for various applications. Models are availab...

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    Original price $24.23 - Original price $24.23
    Original price
    $24.23
    $24.23 - $24.23
    Current price $24.23
    Sold out
  • System Sensor 5603

    SYSTEM SENSOR
    Original price $21.72 - Original price $21.72
    Original price
    $21.72
    $21.72 - $21.72
    Current price $21.72

    Product OverviewThe System Sensor 5600 series offers a versatile line of mechanical heat detectors suitable for a wide range of applications. Avail...

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    Original price $21.72 - Original price $21.72
    Original price
    $21.72
    $21.72 - $21.72
    Current price $21.72
    Sold out
  • System Sensor 5621

    SYSTEM SENSOR
    Original price $54.25
    Original price $54.25 - Original price $54.25
    Original price $54.25
    Current price $51.10
    $51.10 - $51.10
    Current price $51.10

    Product OverviewThe System Sensor 5600 series provides a versatile lineup of mechanical heat detectors, suitable for a wide variety of applications...

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    Original price $54.25
    Original price $54.25 - Original price $54.25
    Original price $54.25
    Current price $51.10
    $51.10 - $51.10
    Current price $51.10
    Save $3.15 Save $0.00
  • System Sensor 5622

    SYSTEM SENSOR
    Original price $46.92 - Original price $46.92
    Original price
    $46.92
    $46.92 - $46.92
    Current price $46.92

    Product OverviewThe 5600 series provides a versatile lineup of mechanical heat detectors designed to support a wide variety of applications. Models...

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    Original price $46.92 - Original price $46.92
    Original price
    $46.92
    $46.92 - $46.92
    Current price $46.92
    Sold out
  • System Sensor 5623

    SYSTEM SENSOR
    Original price $52.66
    Original price $52.66 - Original price $52.66
    Original price $52.66
    Current price $45.72
    $45.72 - $45.72
    Current price $45.72

    Product OverviewThe 5600 series mechanical heat detectors provide a versatile solution for a wide range of applications. Available in single- and d...

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    Original price $52.66
    Original price $52.66 - Original price $52.66
    Original price $52.66
    Current price $45.72
    $45.72 - $45.72
    Current price $45.72
    Save $6.94 Save $0.00
  • SYSTEM SENSOR 5624

    SYSTEM SENSOR
    Original price $47.10
    Original price $47.10 - Original price $47.10
    Original price $47.10
    Current price $40.16
    $40.16 - $40.16
    Current price $40.16

    Product OverviewThe 5600 series mechanical heat detectors provide versatile solutions for a wide range of applications. Available in single- and du...

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    Original price $47.10
    Original price $47.10 - Original price $47.10
    Original price $47.10
    Current price $40.16
    $40.16 - $40.16
    Current price $40.16
    Sold out
  • SYSTEM SENSOR B114LP

    SYSTEM SENSOR
    Original price $147.29 - Original price $147.29
    Original price
    $147.29
    $147.29 - $147.29
    Current price $147.29

    Product OverviewThe B114LP detector base is designed for use with System Sensor 2151 photoelectric and 1151 ionization detector heads. This 4-wire ...

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    Original price $147.29 - Original price $147.29
    Original price
    $147.29
    $147.29 - $147.29
    Current price $147.29
    Sold out
  • System Sensor B200S-LF-WH

    SYSTEM SENSOR
    Original price $118.48 - Original price $118.48
    Original price
    $118.48
    $118.48 - $118.48
    Current price $118.48

    Product OverviewThe B200S-LF-WH and B200S-LF-IV low-frequency sounder bases are designed for use with addressable detector heads. Compatible sensor...

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    Original price $118.48 - Original price $118.48
    Original price
    $118.48
    $118.48 - $118.48
    Current price $118.48
    Sold out
  • SYSTEM SENSOR B200S-WH

    SYSTEM SENSOR
    Original price $85.62 - Original price $85.62
    Original price
    $85.62
    $85.62 - $85.62
    Current price $85.62

    Product OverviewThe B200S-WH is a white intelligent addressable sounder base designed to deliver reliable audible notification with selectable high...

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    Original price $85.62 - Original price $85.62
    Original price
    $85.62
    $85.62 - $85.62
    Current price $85.62
  • SYSTEM SENSOR B200SR-LF-IV

    SYSTEM SENSOR
    Original price $183.16 - Original price $183.16
    Original price
    $183.16
    $183.16 - $183.16
    Current price $183.16
    DISCONTINUED

    Product OverviewThe B200SR-LF-WH and B200SR-LF-IV are low-frequency intelligent sounder bases designed for use with compatible addressable detector...

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    Original price $183.16 - Original price $183.16
    Original price
    $183.16
    $183.16 - $183.16
    Current price $183.16
    Sold out
  • SYSTEM SENSOR B200SR-LF-WH

    SYSTEM SENSOR
    Original price $169.13
    Original price $169.13 - Original price $169.13
    Original price $169.13
    Current price $147.31
    $147.31 - $147.31
    Current price $147.31

    Product OverviewThe B200SR-LF-WH and B200SR-LF-IV are low-frequency sounder bases designed for use with compatible addressable detector heads. Deve...

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    Original price $169.13
    Original price $169.13 - Original price $169.13
    Original price $169.13
    Current price $147.31
    $147.31 - $147.31
    Current price $147.31
    Save $21.82 Save $0.00
  • SYSTEM SENSOR B224BI

    SYSTEM SENSOR
    Original price $69.75
    Original price $69.75 - Original price $69.75
    Original price $69.75
    Current price $62.82
    $62.82 - $62.82
    Current price $62.82
    DISCONTINUED

    Product Overview System Sensor Select Series detector bases include standard 4" and 6" models and specialty bases: relay, isolator, sounder, and lo...

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    Original price $69.75
    Original price $69.75 - Original price $69.75
    Original price $69.75
    Current price $62.82
    $62.82 - $62.82
    Current price $62.82
    Save $6.93 Save $0.00