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  • STI-1229-HAZ STI

    STI
    Original price $78.37 - Original price $78.37
    Original price
    $78.37
    $78.37 - $78.37
    Current price $78.37

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

    Original price $78.37 - Original price $78.37
    Original price
    $78.37
    $78.37 - $78.37
    Current price $78.37
    Sold out
  • STI-1331 STI

    STI
    Original price $15.25 - Original price $15.25
    Original price
    $15.25
    $15.25 - $15.25
    Current price $15.25

    Universal Stopper Spacer, 1.5" (37mm)

    Original price $15.25 - Original price $15.25
    Original price
    $15.25
    $15.25 - $15.25
    Current price $15.25
  • STI-13320FR STI

    STI
    Original price $111.53 - Original price $111.53
    Original price
    $111.53
    $111.53 - $111.53
    Current price $111.53

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

    Original price $111.53 - Original price $111.53
    Original price
    $111.53
    $111.53 - $111.53
    Current price $111.53
  • STI-14220FR STI

    STI
    Original price $91.51 - Original price $91.51
    Original price
    $91.51
    $91.51 - $91.51
    Current price $91.51

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

    Original price $91.51 - Original price $91.51
    Original price
    $91.51
    $91.51 - $91.51
    Current price $91.51
    Sold out
  • STI-14320CK STI

    STI
    Original price $105.71 - Original price $105.71
    Original price
    $105.71
    $105.71 - $105.71
    Current price $105.71

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

    Original price $105.71 - Original price $105.71
    Original price
    $105.71
    $105.71 - $105.71
    Current price $105.71
  • STI-14320FR STI

    STI
    Original price $104.90 - Original price $104.90
    Original price
    $104.90
    $104.90 - $104.90
    Current price $104.90

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

    Original price $104.90 - Original price $104.90
    Original price
    $104.90
    $104.90 - $104.90
    Current price $104.90
  • STI-3004 STI

    STI
    Original price $5.35 - Original price $5.35
    Original price
    $5.35
    $5.35 - $5.35
    Current price $5.35

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

    Original price $5.35 - Original price $5.35
    Original price
    $5.35
    $5.35 - $5.35
    Current price $5.35
    Sold out
  • STI-3104 STI

    STI
    Original price $26.60 - Original price $26.60
    Original price
    $26.60
    $26.60 - $26.60
    Current price $26.60

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

    Original price $26.60 - Original price $26.60
    Original price
    $26.60
    $26.60 - $26.60
    Current price $26.60
    Sold out
  • STI-4100 STI

    STI
    Original price $37.13 - Original price $37.13
    Original price
    $37.13
    $37.13 - $37.13
    Current price $37.13

    Break Glass Stopper Large

    Original price $37.13 - Original price $37.13
    Original price
    $37.13
    $37.13 - $37.13
    Current price $37.13
  • STI-4130 STI

    STI
    Original price $46.04 - Original price $46.04
    Original price
    $46.04
    $46.04 - $46.04
    Current price $46.04

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

    Original price $46.04 - Original price $46.04
    Original price
    $46.04
    $46.04 - $46.04
    Current price $46.04
    Sold out
  • STI-6720 STI

    STI
    Original price $28.22 - Original price $28.22
    Original price
    $28.22
    $28.22 - $28.22
    Current price $28.22

    Keys Under Plexiglas

    Original price $28.22 - Original price $28.22
    Original price
    $28.22
    $28.22 - $28.22
    Current price $28.22
    Sold out
  • STI-7511C STI

    STI
    Original price $51.66 - Original price $51.66
    Original price
    $51.66
    $51.66 - $51.66
    Current price $51.66

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

    Original price $51.66 - Original price $51.66
    Original price
    $51.66
    $51.66 - $51.66
    Current price $51.66
    Sold out
  • STI-7551 STI

    STI
    Original price $585.32 - Original price $585.32
    Original price
    $585.32
    $585.32 - $585.32
    Current price $585.32

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

    Original price $585.32 - Original price $585.32
    Original price
    $585.32
    $585.32 - $585.32
    Current price $585.32
    Sold out
  • STI-9602 STI

    STI
    Original price $35.05 - Original price $35.05
    Original price
    $35.05
    $35.05 - $35.05
    Current price $35.05

    Steel Web Stopper, Low Profile, Surface Mt

    Original price $35.05 - Original price $35.05
    Original price
    $35.05
    $35.05 - $35.05
    Current price $35.05
  • STI-9621 STI

    STI
    Original price $32.09 - Original price $32.09
    Original price
    $32.09
    $32.09 - $32.09
    Current price $32.09

    Motion Detector Damage Stopper 7.00 X 5.75 X 4.50"

    Original price $32.09 - Original price $32.09
    Original price
    $32.09
    $32.09 - $32.09
    Current price $32.09
    Sold out
  • STI-9708 STI

    STI
    Original price $34.55 - Original price $34.55
    Original price
    $34.55
    $34.55 - $34.55
    Current price $34.55

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

    Original price $34.55 - Original price $34.55
    Original price
    $34.55
    $34.55 - $34.55
    Current price $34.55
  • STI-9713 STI

    STI
    Original price $30.10 - Original price $30.10
    Original price
    $30.10
    $30.10 - $30.10
    Current price $30.10

    Steel Web Stopper for Photoelectric Smoke Detector, Fl Mt

    Original price $30.10 - Original price $30.10
    Original price
    $30.10
    $30.10 - $30.10
    Current price $30.10
    Sold out
  • STI-9717 STI

    STI
    Original price $29.89 - Original price $29.89
    Original price
    $29.89
    $29.89 - $29.89
    Current price $29.89

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

    Original price $29.89 - Original price $29.89
    Original price
    $29.89
    $29.89 - $29.89
    Current price $29.89
    Sold out
  • STI-9729 STI

    STI
    Original price $57.79 - Original price $57.79
    Original price
    $57.79
    $57.79 - $57.79
    Current price $57.79

    7" x 7" x 7", Wire Cage

    Original price $57.79 - Original price $57.79
    Original price
    $57.79
    $57.79 - $57.79
    Current price $57.79
    Sold out
  • STI-9754 STI

    STI
    Original price $35.28 - Original price $35.28
    Original price
    $35.28
    $35.28 - $35.28
    Current price $35.28

    STROBE WIRE GUARD, WALL MOUNT, WHITE

    Original price $35.28 - Original price $35.28
    Original price
    $35.28
    $35.28 - $35.28
    Current price $35.28
  • STI-EM111504 STI

    STI
    Original price $55.69 - Original price $55.69
    Original price
    $55.69
    $55.69 - $55.69
    Current price $55.69

    Metal Protective Cabinet

    Original price $55.69 - Original price $55.69
    Original price
    $55.69
    $55.69 - $55.69
    Current price $55.69
    Sold out
  • STI-EM121204 STI

    STI
    Original price $42.79 - Original price $42.79
    Original price
    $42.79
    $42.79 - $42.79
    Current price $42.79

    Metal Protective Cabinet;

    Original price $42.79 - Original price $42.79
    Original price
    $42.79
    $42.79 - $42.79
    Current price $42.79
  • STI-EM151804 STI

    STI
    Original price $72.40 - Original price $72.40
    Original price
    $72.40
    $72.40 - $72.40
    Current price $72.40

    Metal Protective Cabinet; Must buy in Multiples of 2

    Original price $72.40 - Original price $72.40
    Original price
    $72.40
    $72.40 - $72.40
    Current price $72.40
    Sold out
  • STI-SA5600-B STI

    STI
    Original price $50.46 - Original price $50.46
    Original price
    $50.46
    $50.46 - $50.46
    Current price $50.46

    Select-Alert Siren/Strobe - Rectangle, Blue

    Original price $50.46 - Original price $50.46
    Original price
    $50.46
    $50.46 - $50.46
    Current price $50.46
    Sold out
  • STRR GENTEX

    GENTEX
    Original price $104.09 - Original price $104.09
    Original price
    $104.09
    $104.09 - $104.09
    Current price $104.09

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

    Original price $104.09 - Original price $104.09
    Original price
    $104.09
    $104.09 - $104.09
    Current price $104.09
  • SW SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $21.00 - Original price $21.00
    Original price
    $21.00
    $21.00 - $21.00
    Current price $21.00

    STROBE, STANDARD CD, WHITE

    Original price $21.00 - Original price $21.00
    Original price
    $21.00
    $21.00 - $21.00
    Current price $21.00
    Sold out
  • SWL-P SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $66.31
    Original price $66.31 - Original price $66.31
    Original price $66.31
    Current price $63.76
    $63.76 - $63.76
    Current price $63.76

    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 $66.31
    Original price $66.31 - Original price $66.31
    Original price $66.31
    Current price $63.76
    $63.76 - $63.76
    Current price $63.76
    Save $2.55 Save $0.00
  • SWLED-P SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $52.63
    Original price $52.63 - Original price $52.63
    Original price $52.63
    Current price $47.63
    $47.63 - $47.63
    Current price $47.63

    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 $52.63
    Original price $52.63 - Original price $52.63
    Original price $52.63
    Current price $47.63
    $47.63 - $47.63
    Current price $47.63
    Sold out
  • SYSTEM SENSOR 2151

    SYSTEM SENSOR
    Original price $55.60 - Original price $55.60
    Original price
    $55.60
    $55.60 - $55.60
    Current price $55.60
    DISCONTINUED

    Smoke Detector Head, Photo, Low-Profile

    Original price $55.60 - Original price $55.60
    Original price
    $55.60
    $55.60 - $55.60
    Current price $55.60
  • System Sensor 2W-B

    SYSTEM SENSOR
    Original price $44.80 - Original price $44.80
    Original price
    $44.80
    $44.80 - $44.80
    Current price $44.80

    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 $44.80 - Original price $44.80
    Original price
    $44.80
    $44.80 - $44.80
    Current price $44.80
    Sold out
  • SYSTEM SENSOR 2WT-B

    SYSTEM SENSOR
    Original price $41.88 - Original price $41.88
    Original price
    $41.88
    $41.88 - $41.88
    Current price $41.88

    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 $41.88 - Original price $41.88
    Original price
    $41.88
    $41.88 - $41.88
    Current price $41.88
  • SYSTEM SENSOR 4W-B

    SYSTEM SENSOR
    Original price $41.35 - Original price $41.35
    Original price
    $41.35
    $41.35 - $41.35
    Current price $41.35

    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 $41.35 - Original price $41.35
    Original price
    $41.35
    $41.35 - $41.35
    Current price $41.35
    Sold out
  • System Sensor 4WT-B

    SYSTEM SENSOR
    Original price $50.26 - Original price $50.26
    Original price
    $50.26
    $50.26 - $50.26
    Current price $50.26

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

    Original price $50.26 - Original price $50.26
    Original price
    $50.26
    $50.26 - $50.26
    Current price $50.26
    Sold out
  • System Sensor 4WTAR-B

    SYSTEM SENSOR
    Original price $100.42 - Original price $100.42
    Original price
    $100.42
    $100.42 - $100.42
    Current price $100.42

    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 $100.42 - Original price $100.42
    Original price
    $100.42
    $100.42 - $100.42
    Current price $100.42
  • SYSTEM SENSOR 4WTR-B

    SYSTEM SENSOR
    Original price $77.97 - Original price $77.97
    Original price
    $77.97
    $77.97 - $77.97
    Current price $77.97

    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 $77.97 - Original price $77.97
    Original price
    $77.97
    $77.97 - $77.97
    Current price $77.97
    Sold out
  • SYSTEM SENSOR 5251H

    SYSTEM SENSOR
    Original price $110.58 - Original price $110.58
    Original price
    $110.58
    $110.58 - $110.58
    Current price $110.58

    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 $110.58 - Original price $110.58
    Original price
    $110.58
    $110.58 - $110.58
    Current price $110.58
  • SYSTEM SENSOR 5601P

    SYSTEM SENSOR
    Original price $17.46 - Original price $17.46
    Original price
    $17.46
    $17.46 - $17.46
    Current price $17.46

    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 $17.46 - Original price $17.46
    Original price
    $17.46
    $17.46 - $17.46
    Current price $17.46
    Sold out
  • System Sensor 5603

    SYSTEM SENSOR
    Original price $15.65 - Original price $15.65
    Original price
    $15.65
    $15.65 - $15.65
    Current price $15.65

    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 $15.65 - Original price $15.65
    Original price
    $15.65
    $15.65 - $15.65
    Current price $15.65
    Sold out
  • System Sensor 5621

    SYSTEM SENSOR
    Original price $39.09
    Original price $39.09 - Original price $39.09
    Original price $39.09
    Current price $36.82
    $36.82 - $36.82
    Current price $36.82

    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 $39.09
    Original price $39.09 - Original price $39.09
    Original price $39.09
    Current price $36.82
    $36.82 - $36.82
    Current price $36.82
    Save $2.27 Save $0.00
  • System Sensor 5622

    SYSTEM SENSOR
    Original price $33.81 - Original price $33.81
    Original price
    $33.81
    $33.81 - $33.81
    Current price $33.81

    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 $33.81 - Original price $33.81
    Original price
    $33.81
    $33.81 - $33.81
    Current price $33.81
    Sold out
  • System Sensor 5623

    SYSTEM SENSOR
    Original price $37.94
    Original price $37.94 - Original price $37.94
    Original price $37.94
    Current price $32.94
    $32.94 - $32.94
    Current price $32.94

    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 $37.94
    Original price $37.94 - Original price $37.94
    Original price $37.94
    Current price $32.94
    $32.94 - $32.94
    Current price $32.94
    Save $5.00 Save $0.00
  • SYSTEM SENSOR 5624

    SYSTEM SENSOR
    Original price $33.94
    Original price $33.94 - Original price $33.94
    Original price $33.94
    Current price $28.94
    $28.94 - $28.94
    Current price $28.94

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

    View full details
    Original price $33.94
    Original price $33.94 - Original price $33.94
    Original price $33.94
    Current price $28.94
    $28.94 - $28.94
    Current price $28.94
    Sold out
  • SYSTEM SENSOR B114LP

    SYSTEM SENSOR
    Original price $106.13 - Original price $106.13
    Original price
    $106.13
    $106.13 - $106.13
    Current price $106.13

    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 $106.13 - Original price $106.13
    Original price
    $106.13
    $106.13 - $106.13
    Current price $106.13
    Sold out
  • System Sensor B200S-LF-WH

    SYSTEM SENSOR
    Original price $85.37 - Original price $85.37
    Original price
    $85.37
    $85.37 - $85.37
    Current price $85.37

    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 $85.37 - Original price $85.37
    Original price
    $85.37
    $85.37 - $85.37
    Current price $85.37
    Sold out
  • SYSTEM SENSOR B200S-WH

    SYSTEM SENSOR
    Original price $61.69 - Original price $61.69
    Original price
    $61.69
    $61.69 - $61.69
    Current price $61.69

    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 $61.69 - Original price $61.69
    Original price
    $61.69
    $61.69 - $61.69
    Current price $61.69
  • SYSTEM SENSOR B200SR-LF-IV

    SYSTEM SENSOR
    Original price $131.97 - Original price $131.97
    Original price
    $131.97
    $131.97 - $131.97
    Current price $131.97
    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 $131.97 - Original price $131.97
    Original price
    $131.97
    $131.97 - $131.97
    Current price $131.97
    Sold out
  • SYSTEM SENSOR B200SR-LF-WH

    SYSTEM SENSOR
    Original price $121.86
    Original price $121.86 - Original price $121.86
    Original price $121.86
    Current price $106.14
    $106.14 - $106.14
    Current price $106.14

    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 $121.86
    Original price $121.86 - Original price $121.86
    Original price $121.86
    Current price $106.14
    $106.14 - $106.14
    Current price $106.14
    Save $15.72 Save $0.00
  • SYSTEM SENSOR B224BI

    SYSTEM SENSOR
    Original price $50.26
    Original price $50.26 - Original price $50.26
    Original price $50.26
    Current price $45.26
    $45.26 - $45.26
    Current price $45.26
    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 $50.26
    Original price $50.26 - Original price $50.26
    Original price $50.26
    Current price $45.26
    $45.26 - $45.26
    Current price $45.26
    Save $5.00 Save $0.00