STI products
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Save $25.80
Add to Cart The item has been addedSTI Wireless Doorbell Extender with Receiver - STI-3300
Wireless doorbell extender sensor designed to retrofit into an existing house doorbell box and transmit button presses to a wireless receiver up to
- Transmits doorbell presses up to 500 ft line-of-sight at 433 MHz, FCC/IC certified.
- Retrofits onto existing doorbell terminal screws with fork connectors—no rewiring needed.
- Receiver powers via standard 120 VAC outlet; sensor draws from existing doorbell supply.
Usually Ships in 2-3 Weeks Free shipping over $499$75.79 $49.99 Save $25.80 -
Save $269.42
Add to Cart The item has been addedSTI Weather Stopper® Contractor 6-Pack Surface - STI-3150CP6
6-pack of Weather Stopper® surface-mount protective covers designed to shield manual fire alarm pull stations from unauthorized activation and
- Six-pack surface-mount covers protect pull stations from tampering and damage.
- Fits pull stations 5.5"–6.75" tall/wide; spacer system supports depths up to 2.75".
- Clear plastic window maintains full pull station visibility without removing cover.
Usually Ships in 2-3 Weeks Free shipping over $499$676.41 $406.99 Save $269.42 -
Save $0.83
Add to Cart The item has been addedSTI Weather Stopper® sin Sirena con Espaciador, Español
Weather-resistant spacer for outdoor TCP/IP access control, Spanish interface
- 9VDC operation with TCP/IP networking for integrated door control systems
- IP54 rating handles outdoor installation in exposed weather conditions
- Spanish language support included for multilingual facility deployments
Usually Ships in 2-3 Weeks Free shipping over $499$118.82 $117.99 Save $0.83 -
Save $0.47
Add to Cart The item has been addedSTI Rigid Conduit Gasket for Stopper II® (3/4" or - STI-3004
Rigid conduit gasket engineered specifically for the Stopper II electric strike platform
- Seals 1/2" and 3/4" rigid conduit entries on Stopper II strikes with one SKU.
- Rigid construction maintains seal integrity under vibration and thermal cycling.
- Blocks moisture ingress at conduit entry, preventing terminal corrosion in wet environments.
Usually Ships in 2-3 Weeks Free shipping over $499$8.46 $7.99 Save $0.47 -
Save $120.91
Add to Cart The item has been addedSTI STI-282121-BK Speaker Guard Damage Stopper Black
Black metal speaker guard for conference rooms and classrooms
- 24" × 14" × 16" steel construction with powder coat finish
- Protects speakers from impact, vandalism, and environmental damage
- Compatible with standard commercial speaker installations and mounts
Usually Ships in 2-3 Weeks Free shipping over $499$325.90 $204.99 Save $120.91 -
Save $171.26
Add to Cart The item has been addedSTI STI-262626 Projector Damage Stopper Lock
Steel-wire projector enclosure designed to prevent theft and vandalism in educational facilities, conference rooms, and commercial AV installations
- 9-gauge polyester-coated steel wire construction resists cutting and corrosion.
- 26×26×26 in. interior envelope accommodates most standard ceiling-mounted projectors.
- Mounts to existing brackets or ceiling structure using included hardware; drill and wrench only.
Usually Ships in 2-3 Weeks Free shipping over $499$516.25 $344.99 Save $171.26 -
Save $120.91
Add to Cart The item has been addedSTI STI-241416-BK Speaker Guard Damage Stopper Black
24-inch × 14-inch × 16-inch protective cage designed to shield speakers and audio equipment from impact damage and intentional vandalism in
- 9-gauge steel wire cage protects speakers from impact and vandalism without blocking audio.
- 24" × 14" × 16" interior fits standard PA, emergency, and fire-alarm speaker cabinets.
- Polyester-coated steel resists corrosion; installs via included brackets, screws, and anchors.
Usually Ships in 2-3 Weeks Free shipping over $499$325.90 $204.99 Save $120.91 -
Save $0.73
Add to Cart The item has been addedSTI 14510FR Low Profile Enclosed Back Box
Low-profile intercom, flush or surface mount, 24VDC, IP56 weather rated
- Compact dome design fits tight spaces without projecting from wall surface
- Enclosed back box shields wiring and connections from weather and impact
- 24VDC operation integrates directly into access control and intercom systems
Usually Ships in 2-3 Weeks Free shipping over $499$151.72 $150.99 Save $0.73 -
Save $0.43
Add to Cart The item has been addedSTI Universal Stopper® Low Profile Horn Enclosed - STI-14420FR
Low-profile protective stopper designed to shield emergency intercommunication devices, fire alarm stations, emergency buttons, keypads, and access
- Polycarbonate enclosure shields intercoms and access control gear from vandalism.
- Operates on 24VDC with integrated horn and optional relay output for signaling.
- Sealed back box with ¾-inch conduit knockouts supports interior and exterior installs.
Usually Ships in 2-3 Weeks Free shipping over $499$207.42 $206.99 Save $0.43 -
Save $0.73
Add to Cart The item has been addedSTI 14410FR Stopper Low Profile
Low-profile intercom stopper, 24VDC, enclosed box, horn-optional
- Compact dome mount fits door or wall without surface protrusion
- 24VDC operation integrates with standard access control infrastructure
- Enclosed back box design protects components, horn sold separately
Usually Ships in 2-3 Weeks Free shipping over $499$151.72 $150.99 Save $0.73 -
Save $0.15
Add to Cart The item has been addedSTI Universal Stopper® Low Profile without Horn - STI-14400NB
Low-profile polycarbonate protective housing engineered to shield intercoms, keypads, emergency buttons, and fire alarm stations from vandalism
- UV-stabilized polycarbonate housing protects intercoms and keypads indoors or outdoors.
- Runs on 24VDC, drawing from existing access control infrastructure—no separate supply needed.
- Low-profile ADA-compliant design suits retrofit installs where space and code compliance are critical.
Usually Ships in 2-3 Weeks Free shipping over $499$143.14 $142.99 Save $0.15 -
Save $0.09
Add to Cart The item has been addedSTI Universal Stopper® Low Profile without Horn - STI-14310FR
Low-profile dome-shaped protective enclosure for intercom stations, emergency buttons, and access control keypads
- Polycarbonate dome enclosure shields keypads and intercom stations from vandalism.
- Supports surface-mount and semi-recessed flush installation for flexible deployment.
- Threaded top/bottom ports accept 3/4-inch Sch 40 rigid conduit; operates at 24VDC.
Usually Ships in 2-3 Weeks Free shipping over $499$115.08 $114.99 Save $0.09 -
Save $0.38
Add to Cart The item has been addedSTI 14300NC Stopper Low Profile
Low-profile flush-mount intercom stopper for universal access systems
- 24VDC operation with included backplate for seamless flush installation
- IP56-rated dome design fits compact spaces without protruding
- Compatible with standard universal stopper intercom infrastructure
Usually Ships in 2-3 Weeks Free shipping over $499$71.37 $70.99 Save $0.38 -
Save $0.82
Add to Cart The item has been addedSTI 14220FR-FR Low Profile Horn
Low-profile TCP/IP intercom with horn speaker and fire rating
- Surface-mount design fits tight spaces at entry points and gates
- 24VDC operation with TCP/IP networking for access control systems
- Horn audio output with fire label for emergency communication areas
Usually Ships in 2-3 Weeks Free shipping over $499$144.81 $143.99 Save $0.82 -
Save $0.82
Add to Cart The item has been addedSTI Universal Stopper® Low Profile Horn Surface - STI-14220FR
Low-profile, surface-mount protective stopper unit designed to shield manual fire alarm stations, intercoms, emergency buttons, and access control
- Surface-mount install requires no cavity prep, reducing labor time on retrofits.
- Runs on 24V DC, integrating directly with standard access control and intercom systems.
- UV-stabilized polycarbonate dome protects fire alarm stations from vandalism and impact.
Usually Ships in 2-3 Weeks Free shipping over $499$144.81 $143.99 Save $0.82 -
Save $0.95
Add to Cart The item has been addedSTI 14210NB Low Profile Stopper
Low-profile surface-mount intercom, 24VDC, no horn
- Surface-mount installation fits standard walls without recessed cavities
- 24VDC operation integrates with existing access control infrastructure
- Low-profile design minimizes visual impact in commercial entry points
Usually Ships in 2-3 Weeks Free shipping over $499$91.94 $90.99 Save $0.95 -
Save $0.64
Add to Cart The item has been addedSTI 14210FR Low Profile Stopper
Low-profile surface mount intercom for secure entry, 24VDC, no horn
- Surface mount dome design fits tight spaces at entry points
- 24VDC operation integrates with existing access control systems
- IP56 rating handles indoor and covered outdoor installations
Usually Ships in 2-3 Weeks Free shipping over $499$86.63 $85.99 Save $0.64 -
Save $0.61
Add to Cart The item has been addedSTI 14200NY Low Profile Stopper
Low-profile surface-mount intercom stopper for 24VDC access control
- Surface-mount installation on door frames without recessed cavity needs
- 24VDC operation integrates into existing access control infrastructure
- Low-profile design maintains discreet appearance in security deployments
Usually Ships in 2-3 Weeks Free shipping over $499$81.60 $80.99 Save $0.61 -
Save $0.89
Add to Cart The item has been addedSTI STI-14200NR-Z003 Universal Stopper Fire Sprinkler Tool
Universal manual stopper tool for fire sprinkler system control
- Compatible with universal fire sprinkler head designs for standard installations
- Manual activation and stoppage control for emergency sprinkler management
- Lock/strike accessory type for integration into security system workflows
Usually Ships in 2-3 Weeks Free shipping over $499$236.88 $235.99 Save $0.89 -
Save $0.98
Add to Cart The item has been addedSTI 14020CR Stopper Low Profile Horn
Flush-mount intercom with integrated horn and custom labeling for access control
- 24VDC low-profile design fits compact mounting spaces in security systems
- Integrated horn operation for two-way communication without external amplifier
- Custom label support enables site-specific identification and wayfinding
Usually Ships in 2-3 Weeks Free shipping over $499$128.97 $127.99 Save $0.98
