Skip to content
LET US BE YOUR NEXT SECURITY PARTNER
BBB Accredited Business

sti

Filters

  • STI-1221A4X STI

    STI
    $120.10 - $120.10
    $120.10
    $120.10 - $120.10
    $120.10

    Strobe Damage Stopper w/Enc Bkbx, 4" Deep NEMA 4X

    $120.10 - $120.10
    $120.10
    $120.10 - $120.10
    $120.10
  • Sold out

    STI-1221A4X-WD STI

    STI
    $234.46 - $234.46
    $234.46
    $234.46 - $234.46
    $234.46

    Product Overview This weatherproof Type 4X enclosed back box with protective cover is designed for demanding environments such as washdown areas. F...

    View full details
    $234.46 - $234.46
    $234.46
    $234.46 - $234.46
    $234.46
    Sold out

  • STI-1221B STI

    STI
    $66.02 - $66.02
    $66.02
    $66.02 - $66.02
    $66.02

    STROBE DAMAGE STOPPER W/ENC BKBX W/DOUBLE-GANG OUTLET BOX

    $66.02 - $66.02
    $66.02
    $66.02 - $66.02
    $66.02

  • STI-1221C STI

    STI
    $52.73 - $52.73
    $52.73
    $52.73 - $52.73
    $52.73

    Strobe Damage Stopper w/Open Bkbx w/External Mounting Tabs

    $52.73 - $52.73
    $52.73
    $52.73 - $52.73
    $52.73

  • STI-1221D STI

    STI
    $60.81 - $60.81
    $60.81
    $60.81 - $60.81
    $60.81

    STROBE DAMAGE STOPPER W/OPEN BKBX W/CONDUIT KNOCKOUT

    $60.81 - $60.81
    $60.81
    $60.81 - $60.81
    $60.81

  • STI-1221E STI

    STI
    $50.19 - $50.19
    $50.19
    $50.19 - $50.19
    $50.19

    STROBE DAMAGE STOPPER W/OPEN BKBX FOR FL MT

    $50.19 - $50.19
    $50.19
    $50.19 - $50.19
    $50.19
  • Sold out

    STI-1225 STI

    STI
    $53.16 - $53.16
    $53.16
    $53.16 - $53.16
    $53.16

    Stopper Dome for Strobe, Fl Mt

    $53.16 - $53.16
    $53.16
    $53.16 - $53.16
    $53.16
    Sold out

  • STI-1227 STI

    STI
    $57.77 - $57.77
    $57.77
    $57.77 - $57.77
    $57.77

    Stopper Dome for Strobe with Open Back Box

    $57.77 - $57.77
    $57.77
    $57.77 - $57.77
    $57.77

  • STI-1229 STI

    STI
    $93.00 - $93.00
    $93.00
    $93.00 - $93.00
    $93.00

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

    $93.00 - $93.00
    $93.00
    $93.00 - $93.00
    $93.00
  • Sold out

    STI-1229-HAZ STI

    STI
    $112.21 - $112.21
    $112.21
    $112.21 - $112.21
    $112.21

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

    $112.21 - $112.21
    $112.21
    $112.21 - $112.21
    $112.21
    Sold out
  • Sold out

    STI-1229-WD STI

    STI
    $192.04 - $192.04
    $192.04
    $192.04 - $192.04
    $192.04

    Stopper® Dome for Strobe Only with Enclosed Back Box - Type 4X Enhanced Chemical Resistance

    $192.04 - $192.04
    $192.04
    $192.04 - $192.04
    $192.04
    Sold out

  • STI-1230 STI

    STI
    $92.71 - $92.71
    $92.71
    $92.71 - $92.71
    $92.71

    Stopper II w/o Horn-Surface Mount

    $92.71 - $92.71
    $92.71
    $92.71 - $92.71
    $92.71

  • STI-1250 STI

    STI
    $83.76 - $83.76
    $83.76
    $83.76 - $83.76
    $83.76

    Weather Stopper II

    $83.76 - $83.76
    $83.76
    $83.76 - $83.76
    $83.76

  • STI-1280 STI

    STI
    $19.36 - $19.36
    $19.36
    $19.36 - $19.36
    $19.36

    Backplate for Stopper II & Weather Stopper

    $19.36 - $19.36
    $19.36
    $19.36 - $19.36
    $19.36

  • STI-13000NC STI

    STI
    $46.12 - $46.12
    $46.12
    $46.12 - $46.12
    $46.12

    STI UNIVERSAL STOPPER..COVER, NO SPACER

    $46.12 - $46.12
    $46.12
    $46.12 - $46.12
    $46.12

  • STI-13010FR STI

    STI
    $61.27 - $61.27
    $61.27
    $61.27 - $61.27
    $61.27

    Universal Stopper Dome Cover w/Fl Mt, Red Housing, Fire Label

    $61.27 - $61.27
    $61.27
    $61.27 - $61.27
    $61.27

  • STI-13020FR STI

    STI
    $120.75 - $120.75
    $120.75
    $120.75 - $120.75
    $120.75

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

    $120.75 - $120.75
    $120.75
    $120.75 - $120.75
    $120.75

  • STI-13200NC STI

    STI
    $64.62 - $64.62
    $64.62
    $64.62 - $64.62
    $64.62

    Universal Stopper Dome Cover w/Clear Spacer

    $64.62 - $64.62
    $64.62
    $64.62 - $64.62
    $64.62
  • Sold out

    STI-13200NY STI

    STI
    $73.83 - $73.83
    $73.83
    $73.83 - $73.83
    $73.83

    Universal Stopper Dome Cover w/Spacer, YELLOW

    $73.83 - $73.83
    $73.83
    $73.83 - $73.83
    $73.83
    Sold out

  • STI-13210FR STI

    STI
    $78.42 - $78.42
    $78.42
    $78.42 - $78.42
    $78.42

    Universal Stopper Dome Cover w/Spacer, Red Housing, Fire Label

    $78.42 - $78.42
    $78.42
    $78.42 - $78.42
    $78.42

  • STI-13220FR STI

    STI
    $138.92 - $138.92
    $138.92
    $138.92 - $138.92
    $138.92

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

    $138.92 - $138.92
    $138.92
    $138.92 - $138.92
    $138.92

  • STI-1331 STI

    STI
    $25.53 - $25.53
    $25.53
    $25.53 - $25.53
    $25.53

    Universal Stopper Spacer, 1.5" (37mm)

    $25.53 - $25.53
    $25.53
    $25.53 - $25.53
    $25.53

  • STI-13320FR STI

    STI
    $159.69 - $159.69
    $159.69
    $159.69 - $159.69
    $159.69

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

    $159.69 - $159.69
    $159.69
    $159.69 - $159.69
    $159.69

  • STI-13410FR STI

    STI
    $137.28 - $137.28
    $137.28
    $137.28 - $137.28
    $137.28

    UNIVERSAL STOPPER DOME COVER W/ENC BKBX, SEALED MT PLATE, RED HOUSING, FIRE LABEL

    $137.28 - $137.28
    $137.28
    $137.28 - $137.28
    $137.28
  • Sold out

    STI-13410FR-ES STI

    STI
    $137.28 - $137.28
    $137.28
    $137.28 - $137.28
    $137.28

    Universal Stopper Dome Cover, Enclosed Back Box and Sealed Mounting Plate, Label Hood, Fire Label, Spanish, Red

    $137.28 - $137.28
    $137.28
    $137.28 - $137.28
    $137.28
    Sold out

  • STI-13500NR STI

    STI
    $123.35 - $123.35
    $123.35
    $123.35 - $123.35
    $123.35

    Universal Stopper Dome Cover w/Enc. Bkbx, Open Mt Plate, Red

    $123.35 - $123.35
    $123.35
    $123.35 - $123.35
    $123.35
  • Sold out

    STI-13810FR STI

    STI
    $137.28 - $137.28
    $137.28
    $137.28 - $137.28
    $137.28

    Universal Stopper without Horn, Enclosed Back Box & European Sealed Mounting Plate, Fire Label

    $137.28 - $137.28
    $137.28
    $137.28 - $137.28
    $137.28
    Sold out

  • STI-14200NC STI

    STI
    $61.53 - $61.53
    $61.53
    $61.53 - $61.53
    $61.53

    Universal Stopper Low Profile Cover, Clear Spacer

    $61.53 - $61.53
    $61.53
    $61.53 - $61.53
    $61.53

  • STI-14200NR STI

    STI
    $70.33 - $70.33
    $70.33
    $70.33 - $70.33
    $70.33

    Universal Stopper Low Profile Cover, Spacer ; RED

    $70.33 - $70.33
    $70.33
    $70.33 - $70.33
    $70.33
  • Sold out

    STI-14220FR STI

    STI
    $131.03 - $131.03
    $131.03
    $131.03 - $131.03
    $131.03

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

    $131.03 - $131.03
    $131.03
    $131.03 - $131.03
    $131.03
    Sold out

  • STI-14320CK STI

    STI
    $151.36 - $151.36
    $151.36
    $151.36 - $151.36
    $151.36

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

    $151.36 - $151.36
    $151.36
    $151.36 - $151.36
    $151.36

  • STI-14320FR STI

    STI
    $150.20 - $150.20
    $150.20
    $150.20 - $150.20
    $150.20

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

    $150.20 - $150.20
    $150.20
    $150.20 - $150.20
    $150.20

  • STI-14400NR STI

    STI
    $123.35 - $123.35
    $123.35
    $123.35 - $123.35
    $123.35

    Universal Stopper Low Profile w/Enc Bkbx, Sealed Mt Plate ; RED

    $123.35 - $123.35
    $123.35
    $123.35 - $123.35
    $123.35

  • STI-3002 STI

    STI
    $10.08 - $10.08
    $10.08
    $10.08 - $10.08
    $10.08

    Weather Gasket for Stopper II & Weather Stopper

    $10.08 - $10.08
    $10.08
    $10.08 - $10.08
    $10.08
  • Sold out

    STI-3003 STI

    STI
    $7.66 - $7.66
    $7.66
    $7.66 - $7.66
    $7.66

    Conduit Gasket for Stopper II & Weather Stopper

    $7.66 - $7.66
    $7.66
    $7.66 - $7.66
    $7.66
    Sold out

  • STI-3004 STI

    STI
    $7.66 - $7.66
    $7.66
    $7.66 - $7.66
    $7.66

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

    $7.66 - $7.66
    $7.66
    $7.66 - $7.66
    $7.66

  • STI-3100 STI

    STI
    $23.21 - $23.21
    $23.21
    $23.21 - $23.21
    $23.21

    Conduit Spacer-Clear For Stopper II Series, incl. frame

    $23.21 - $23.21
    $23.21
    $23.21 - $23.21
    $23.21
  • Sold out

    STI-3104 STI

    STI
    $38.09 - $38.09
    $38.09
    $38.09 - $38.09
    $38.09

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

    $38.09 - $38.09
    $38.09
    $38.09 - $38.09
    $38.09
    Sold out

  • STI-3150 STI

    STI
    $107.52 - $107.52
    $107.52
    $107.52 - $107.52
    $107.52

    Weather Stopper Surface Mt.- Red w/o Horn-Fire Text

    $107.52 - $107.52
    $107.52
    $107.52 - $107.52
    $107.52
  • Sold out

    STI-3150-ES STI

    STI
    $107.52 - $107.52
    $107.52
    $107.52 - $107.52
    $107.52

    Weather Stopper w/o Horn w/Spacer - red horn, clear spacer - SPANISH VERSION (Weather Stopper® sin Sirena con Espaciador)

    $107.52 - $107.52
    $107.52
    $107.52 - $107.52
    $107.52
    Sold out

  • STI-4100 STI

    STI
    $53.16 - $53.16
    $53.16
    $53.16 - $53.16
    $53.16

    Break Glass Stopper Large

    $53.16 - $53.16
    $53.16
    $53.16 - $53.16
    $53.16
  • Sold out

    STI-4130 STI

    STI
    $65.92 - $65.92
    $65.92
    $65.92 - $65.92
    $65.92

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

    $65.92 - $65.92
    $65.92
    $65.92 - $65.92
    $65.92
    Sold out

  • STI-6200 STI

    STI
    $40.38 - $40.38
    $40.38
    $40.38 - $40.38
    $40.38

    Fire Extinguisher Theft Stopper

    $40.38 - $40.38
    $40.38
    $40.38 - $40.38
    $40.38

  • STI-6400 STI

    STI
    $121.42 - $121.42
    $121.42
    $121.42 - $121.42
    $121.42

    Exit Stopper Multifunction Door Alarm, Red

    $121.42 - $121.42
    $121.42
    $121.42 - $121.42
    $121.42

  • STI-6400WIR STI

    STI
    $159.95 - $159.95
    $159.95
    $159.95 - $159.95
    $159.95

    Wireless Exit Stopper Multifunction Door Alarm

    $159.95 - $159.95
    $159.95
    $159.95 - $159.95
    $159.95

  • STI-6402 STI

    STI
    $137.28 - $137.28
    $137.28
    $137.28 - $137.28
    $137.28

    Exit Stopper Multifunction Door Alarm for Double Door

    $137.28 - $137.28
    $137.28
    $137.28 - $137.28
    $137.28

  • STI-6402WIR STI

    STI
    $173.64 - $173.64
    $173.64
    $173.64 - $173.64
    $173.64

    Wireless Exit Stopper Multifunction Door Alarm for Double Doors

    $173.64 - $173.64
    $173.64
    $173.64 - $173.64
    $173.64

  • STI-6518 STI

    STI
    $33.96 - $33.96
    $33.96
    $33.96 - $33.96
    $33.96

    Bopper Stopper-Clear w/Spring hinge

    $33.96 - $33.96
    $33.96
    $33.96 - $33.96
    $33.96