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  • Save $0.73
    STI Universal Stopper® without Horn, Enclosed Back Box, Sealed Mou...
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    STI STI-13410FR

    STI Universal Stopper® without Horn, Enclosed Back Box, Sealed Mou...

    24VDC intercom for access control without horn output

    • Dome low-profile mount with enclosed back box and sealed housing
    • IP56-rated sealed mount prevents environmental contamination
    • Integrates into standard access control and entry communication systems
    Usually Ships in 2-3 Weeks Free shipping over $499
    $151.72 $150.99 Save $0.73
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  • Save $0.15
    STI Universal Stopper® without Horn Housing, Enclosed Back Box, Sea...
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    STI STI-13400NB

    STI Universal Stopper® without Horn Housing, Enclosed Back Box, Sea...

    Compact 24VDC intercom for STI access control systems

    • Enclosed back box design fits recessed or wall-mounted installations
    • 24VDC operation integrates into standard security infrastructure
    • IP54-rated for use at entry points and facility access checkpoints
    Usually Ships in 2-3 Weeks Free shipping over $499
    $143.14 $142.99 Save $0.15
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  • Save $0.07
    STI Universal Stopper® without Horn Encl. Flush - STI-13310FR
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    STI STI-13310FR

    STI Universal Stopper® without Horn Encl. Flush - STI-13310FR

    Flush-back-box protective enclosure designed to shield manual fire alarm stations, emergency call stations, intercoms, keypads, and other access

    • Flush back box mounts recessed into wall for a low-profile, ADA-compliant install.
    • UV-stabilized polycarbonate dome keeps protected devices visible without yellowing.
    • Runs on 24V DC, integrating directly with standard access control power supplies.
    Usually Ships in 2-3 Weeks Free shipping over $499
    $115.06 $114.99 Save $0.07
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  • Save $0.30
    STI STI-1331 Universal Stopper® Electric Strike (view 3)
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    STI STI-1331

    STI STI-1331 Universal Stopper® Electric Strike

    Universal Stopper® electric strike for retrofit and new access control installations

    • 9VDC operation integrates with standard access control relay systems and battery backup
    • Universal Stopper® design fits multiple door frame types without custom modifications
    • Wall-mount configuration supports both retrofit and new installation deployments
    Usually Ships in 2-3 Weeks Free shipping over $499
    $25.29 $24.99 Save $0.30
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  • Save $0.10
    STI STI-13230NB Universal Stopper® with Horn & Relay, Surface Mount, No Label
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    STI STI-13230NB

    STI Universal Stopper® with Horn & Relay Surface - STI-13230NB

    Surface-mount protective stopper housing that integrates relay and horn functionality into a single compact unit

    • Surface-mount housing protects keypads, intercoms, and alarm stations from vandalism.
    • Operates on 24VDC with relay output accepting 12–24VDC for mixed-voltage installations.
    • UV-stabilized polycarbonate build supports both indoor and outdoor deployment.
    Usually Ships in 2-3 Weeks Free shipping over $499
    $203.09 $202.99 Save $0.10
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  • Save $0.76
    STI Universal Stopper® with Horn & Relay Surface - STI-13230FR
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    STI STI-13230FR

    STI Universal Stopper® with Horn & Relay Surface - STI-13230FR

    Surface-mounted mechanical stopper with integrated 24VDC horn and relay output, designed to secure and audibly signal control of fire alarm stations

    • Integrated 24VDC horn delivers audible alerts without a separate notification device.
    • Relay output supports fire alarm panels, door strikes, and intercom logic at 12–24VDC.
    • Polycarbonate surface-mount cover protects keypads and intercoms from vandalism and weather.
    Usually Ships in 2-3 Weeks Free shipping over $499
    $203.75 $202.99 Save $0.76
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  • Save $0.13
    STI Universal Stopper® with Horn & Relay, Surface Mount, Custom Label (view 2)
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    STI STI-13230CY

    STI 13230CY Stopper Horn Relay

    Surface-mount horn & relay control for STI intercom systems

    • 24VDC integrated horn and relay for audible alerts and automation
    • Surface mount design fits secure entry points and access corridors
    • Custom label support for facility-specific identification and wayfinding
    Usually Ships in 2-3 Weeks Free shipping over $499
    $203.12 $202.99 Save $0.13
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  • Save $0.52
    STI Universal Stopper® with Horn, Surface Mount, Fire Label - French
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    STI STI-13220FR-FR

    STI Universal Stopper® with Horn, Surface Mount, Fire Label - French

    Surface-mount intercom stopper with horn, TCP/IP networked, French interface

    • Integrated horn + stopper in dome low-profile form for door access points
    • TCP/IP network communication with 24VDC power for access control integration
    • IP56 rated surface mount design for secure entry verification applications
    Usually Ships in 2-3 Weeks Free shipping over $499
    $153.51 $152.99 Save $0.52
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  • Save $0.95
    STI Universal Stopper® without Horn Surface Mount - STI-13210NB
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    STI STI-13210NB

    STI Universal Stopper® without Horn Surface Mount - STI-13210NB

    Surface-mounted protective enclosure—a Universal Stopper without horn or factory labeling—designed to shield access control hardware from vandalism

    • Surface-mount design enables retrofit installation without flush-mount wall preparation.
    • UV-stabilized polycarbonate cover protects devices outdoors while keeping controls visible.
    • 24V DC operation integrates directly with standard access control power architectures.
    Usually Ships in 2-3 Weeks Free shipping over $499
    $91.94 $90.99 Save $0.95
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  • Save $0.64
    STI Universal Stopper® without Horn, Surface Mount, Fire Label - S...
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    STI STI-13210FR-ES

    STI 13210FR-ES Stopper® Surface Mount Fire Label

    Surface-mount intercom with TCP/IP and fire rating for access control

    • TCP/IP communication and 24VDC power integrate with standard access systems
    • IP56 rated dome design handles indoor and light outdoor environments
    • Fire-labeled unit for security-critical entry points without integrated horn
    Usually Ships in 2-3 Weeks Free shipping over $499
    $86.63 $85.99 Save $0.64
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  • Save $0.95
    STI Universal Stopper® without Horn, Surface Mount, Custom Label
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    STI STI-13210CG

    STI 13210CG Stopper - Surface Mount

    Surface-mount intercom for access control, 24VDC, custom label ready

    • 24VDC operation integrates with standard door entry and access systems
    • Surface mount design installs on frames and walls without structural work
    • Custom label support for facility branding and user instruction placement
    Usually Ships in 2-3 Weeks Free shipping over $499
    $91.94 $90.99 Save $0.95
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  • Save $0.95
    STI Universal Stopper® without Horn Surface Mount - STI-13210CB
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    STI STI-13210CB

    STI Universal Stopper® without Horn Surface Mount - STI-13210CB

    Surface-mounted protective enclosure designed to shield manual fire alarm stations, numeric keypads, intercom stations, emergency buttons, light

    • Surface mount installs on flat walls or frames—no recessed cutout required.
    • 24VDC relay logic compatibility integrates into existing access control power architectures.
    • Device-agnostic cavity fits standard fire alarm stations, keypads, and push buttons.
    Usually Ships in 2-3 Weeks Free shipping over $499
    $91.94 $90.99 Save $0.95
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  • Save $0.61
    STI Universal Stopper® without Horn Housing, Surface Mount, No Label
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    STI STI-13200NY

    STI 13200NY Stopper - Surface Mount

    Surface-mount intercom for 24VDC access control without horn housing

    • 24VDC operation integrates into standard security and intercom networks
    • Compatible with external speakers and amplified audio systems
    • IP54-rated surface mount design for access control applications
    Usually Ships in 2-3 Weeks Free shipping over $499
    $81.60 $80.99 Save $0.61
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  • Save $0.38
    STI Universal Stopper® without Horn Housing - STI-13200NC
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    STI STI-13200NC

    STI Universal Stopper® without Horn Housing - STI-13200NC

    Surface-mount intercom station, 24VDC, clear dome for access control

    • IP56-rated clear dome enclosure fits door and wall installations discreetly
    • 24VDC operation integrates with STI Universal Stopper system architecture
    • Low-profile design supports retail, commercial, and institutional deployments
    Usually Ships in 2-3 Weeks Free shipping over $499
    $71.37 $70.99 Save $0.38
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  • Save $0.40
    STI STI-1314 Universal Stopper® Backplate
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    STI STI-1314

    STI STI-1314 Universal Stopper® Backplate

    • Provides standardized mounting interface for Universal Stopper® electric strike systems.
    • Operates on 9VDC, simplifying power integration into existing access control infrastructure.
    • Suits commercial and institutional door hardware deployments requiring electric strike control.
    Usually Ships in 2-3 Weeks Free shipping over $499
    $21.39 $20.99 Save $0.40
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  • Save $0.93
    STI Universal Stopper® with Horn & Relay, Flush, Fire Label STI-13030FR
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    STI STI-13030FR

    STI Universal Stopper® with Horn & Relay, Flush, Fire Label

    Flush fire-rated stopper with horn, relay, and door hold-open at 24VDC

    • Integrated horn and relay trigger audible alerts with electrical switching for access control
    • Fire-labeled design with low-profile dome mount for standard door frame installation
    • 24VDC operation with door hold-open functionality for emergency egress compliance
    Usually Ships in 2-3 Weeks Free shipping over $499
    $163.92 $162.99 Save $0.93
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  • Save $0.45
    STI Universal Stopper® with Horn, Flush, Fire Label, French
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    STI STI-13020FR-FR

    STI Universal Stopper® with Horn, Flush, Fire Label, French

    Flush dome intercom with integrated horn and fire label, French

    • TCP/IP networked emergency communication for modern building systems
    • 24VDC operation integrates with access control and intercom infrastructure
    • ADA-compliant with IP56 rating for indoor/outdoor emergency stations
    Usually Ships in 2-3 Weeks Free shipping over $499
    $133.44 $132.99 Save $0.45
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  • Save $0.45
    STI Universal Stopper - Flush Mount with Sounder, ACTIVATE FIRE ALA... (view 3)
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    STI STI-13020FR

    STI 13020FR Flush Mount Stopper

    Flush-mount fire alarm stopper with integrated sounder, 24VDC

    • 24VDC operation integrates with standard fire alarm and access control systems
    • Integrated sounder delivers audio notification at point of egress control
    • Flush-mount design fits discrete installation in door frame applications
    Usually Ships in 2-3 Weeks Free shipping over $499
    $133.44 $132.99 Save $0.45
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  • Save $0.74
    STI STI-13020CB Universal Stopper with Horn Flush Intercom (view 2)
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    STI STI-13020CB

    STI STI-13020CB Universal Stopper with Horn Flush Intercom

    24VDC flush-mount stopper with integrated horn and intercom

    • Universal stopper design fits multiple door frame types and mounting configs
    • Integrated horn and intercom for audible alerts and two-way communication
    • Flush-mount option supports both surface and recessed installation
    Usually Ships in 2-3 Weeks Free shipping over $499
    $136.73 $135.99 Save $0.74
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  • Save $0.09
    STI STI-13010NY Universal Stopper Intercom Flush Mount
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    STI STI-13010NY

    STI STI-13010NY Universal Stopper Intercom Flush Mount

    Universal stopper enclosure for flush-mount intercom and door communication equipment

    • Polycarbonate cover shields flush-mount intercoms and keypads from vandalism and dust.
    • Operates at 24VDC, integrating directly into standard access control power infrastructure.
    • ADA-compliant low-profile design fits most flush-mount intercom and keypad footprints.
    Usually Ships in 2-3 Weeks Free shipping over $499
    $74.08 $73.99 Save $0.09
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