No bots, just experts

Questions on STI? Free pre-sales support from a senior specialist — product questions, BOM quotes, compatibility checks, price confirmation — within one business day. Need full system design? $175/hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back.

STI products

Sidebar
Selecting a sort option will reload the product list.
  • Save $0.39
    STI STI-6519-FR Single-Gang Protective Cover - image 3
    Add to Cart The item has been added

    STI STI-6519-FR

    STI STI-6519-FR Single-Gang Protective Cover

    Single-gang protective cover for networked access control at 9VDC

    • TCP/IP communication integrates with access control systems over standard network infrastructure
    • Wall plate/door frame mount fits single-gang installations in standard electrical openings
    • 9VDC operating voltage compatible with common 12VDC and 24VDC regulated power supplies
    Usually Ships in 2-3 Weeks Free shipping over $499
    $29.38 $28.99 Save $0.39
    The item has been added Add to quote
    $29.38 $28.99 Save $0.39
    Save $0.39 Add to cart Add to quote
  • Save $0.54
    STI STI-6518-FR Bopper Stopper Reader with Spring Loaded Hinge
    Add to Cart The item has been added

    STI STI-6518-FR

    STI STI-6518-FR Bopper Stopper Reader with Spring Loaded Hinge

    Fingerprint + PIN biometric reader with spring-loaded hinge for access control

    • Hybrid authentication combines fingerprint biometric scanning with PIN keypad entry
    • TCP/IP network communication integrates into distributed control systems without dedicated wiring
    • Spring-loaded hinge design simplifies mounting and adjustment in standard panel installations
    Usually Ships in 2-3 Weeks Free shipping over $499
    $37.53 $36.99 Save $0.54
    The item has been added Add to quote
    $37.53 $36.99 Save $0.54
    Save $0.54 Add to cart Add to quote
  • Save $0.54
    STI Bopper Stopper® with Spring Loaded Hinge - Clear, Spanish Wording
    Add to Cart The item has been added

    STI STI-6518-ES

    STI 6518-ES Spring Loaded Hinge - Clear

    Spring-loaded protective cover with biometric & keypad support, Spanish wording

    • Clear polycarbonate housing with spring-loaded hinge for durable reader protection
    • Biometric fingerprint and keypad credential support with TCP/IP network integration
    • Weather-resistant design built for commercial and secure facility access control
    Usually Ships in 2-3 Weeks Free shipping over $499
    $37.53 $36.99 Save $0.54
    The item has been added Add to quote
    $37.53 $36.99 Save $0.54
    Save $0.54 Add to cart Add to quote
  • Save $0.92
    STI Wireless Exit Stopper® Multifunction Door Alarm for Double Door (view 3)
    Add to Cart The item has been added

    STI STI-6402WIR

    STI STI-6402WIR Wireless Door Alarm

    Double-door wireless alarm with hardwired + wireless connectivity, 9 VDC

    • Multifunction alarm with audible siren and visual flashing beacon for dual alert
    • Hybrid hardwired and wireless operation for retrofit or new system integration
    • Compact 5.375" × 5.375" × 2" frame mount with 9V battery power included
    Usually Ships in 2-3 Weeks Free shipping over $499
    $191.91 $190.99 Save $0.92
    The item has been added Add to quote
    $191.91 $190.99 Save $0.92
    Save $0.92 Add to cart Add to quote
  • Save $0.73
    STI Exit Stopper® Multifunction Door Alarm for Double Door (view 3)
    Add to Cart The item has been added

    STI STI-6402

    STI Exit Stopper® Multifunction Door Alarm for Double Door

    Multifunction alarm & strike control for up to 32 doors

    • Manages 32 doors with single 9 VDC battery or 12–24 VDC hardwired power
    • Visual beacon alarm paired with audible siren for dual-alert monitoring
    • Battery lasts approximately 2 years with ultra-low 15μA draw
    Usually Ships in 2-3 Weeks Free shipping over $499
    $151.72 $150.99 Save $0.73
    The item has been added Add to quote
    $151.72 $150.99 Save $0.73
    Save $0.73 Add to cart Add to quote
  • Save $0.78
    STI STI-6400WIR Wireless Exit Stopper Multifunction Door Alarm
    Add to Cart The item has been added

    STI STI-6400WIR

    STI STI-6400WIR Wireless Exit Stopper Multifunction Door Alarm

    Wireless-enabled exit stopper and multifunction door alarm designed to prevent unauthorized exits and entries without the cost and installation

    • Wireless design eliminates conduit runs for faster retrofit deployment on exit doors.
    • Compact 5.375"×5.375"×2" housing mounts top, left, right, or adjacent to standard frames.
    • Dual-mode operation: select local audible alarm or networked annunciator output per site need.
    Usually Ships in 2-3 Weeks Free shipping over $499
    $176.77 $175.99 Save $0.78
    The item has been added Add to quote
    $176.77 $175.99 Save $0.78
    Save $0.78 Add to cart Add to quote
  • Save $0.21
    STI STI-6255 Mini Theft Stopper Lock
    Add to Cart The item has been added

    STI STI-6255

    STI STI-6255 Mini Theft Stopper Lock

    Standalone 9VDC magnetic reed-switch alarm lock designed to deter theft and unauthorized removal of fire extinguishers and other portable equipment

    • Triggers a 95 dB alarm at 1 meter when protected equipment is moved or lifted.
    • Runs on a single 9V alkaline cell—no wiring, AC power, or control panel needed.
    • Universal clip mounts to fire extinguisher pull pins or under any portable equipment.
    Usually Ships in 2-3 Weeks Free shipping over $499
    $50.20 $49.99 Save $0.21
    The item has been added Add to quote
    $50.20 $49.99 Save $0.21
    Save $0.21 Add to cart Add to quote
  • Save $0.05
    STI STI-6254 Cabinet Alarm Lock/Strike
    Add to Cart The item has been added

    STI STI-6254

    STI STI-6254 Cabinet Alarm Lock/Strike

    Proximity cabinet lock/strike for multi-door security applications

    • Reed switch and magnet activation supports up to 31 doors per system
    • 9VDC alkaline power with compact 3.37" W × 1" D footprint for cabinet mounting
    • Proximity-based reader eliminates mechanical keys for access control
    Usually Ships in 2-3 Weeks Free shipping over $499
    $44.04 $43.99 Save $0.05
    The item has been added Add to quote
    $44.04 $43.99 Save $0.05
    Save $0.05 Add to cart Add to quote
  • Save $0.73
    STI STI-6210 Life Ring Theft Stopper Lock
    Add to Cart The item has been added

    STI STI-6210

    STI STI-6210 Life Ring Theft Stopper Lock

    Theft-prevention lock designed to secure life rings against unauthorized removal in emergency response environments

    • 105dB alarm (selectable to 95dB) triggers on life ring removal, silences on reinsertion.
    • Battery-powered 9VDC alkaline operation eliminates hardwired power for fast retrofit installs.
    • Pre-crimped steel cable and deactivation cable support tamper-deterrent, maintainer-safe deployment.
    Usually Ships in 2-3 Weeks Free shipping over $499
    $88.72 $87.99 Save $0.73
    The item has been added Add to quote
    $88.72 $87.99 Save $0.73
    Save $0.73 Add to cart Add to quote
  • Save $0.11
    STI STI-6205 Defibrillator Theft Stopper Lock
    Add to Cart The item has been added

    STI STI-6205

    STI STI-6205 Defibrillator Theft Stopper Lock

    Dedicated lock/strike mechanism designed to secure automated external defibrillator (AED) cabinets and similar life-safety equipment enclosures

    • Battery-powered 9VDC design eliminates conduit runs for rapid retrofit deployment.
    • Compact 5×5×2 in. footprint fits standard AED cabinet door frames without modification.
    • Included 9VDC alkaline battery enables out-of-box installation with no separate power order.
    Usually Ships in 2-3 Weeks Free shipping over $499
    $61.10 $60.99 Save $0.11
    The item has been added Add to quote
    $61.10 $60.99 Save $0.11
    Save $0.11 Add to cart Add to quote
  • Save $0.41
    STI Wireless Theft Stopper® with Single Channel Slave Receiver (view 2)
    Add to Cart The item has been added

    STI STI-6200WIR9

    STI Wireless Theft Stopper® with Single Channel Slave Receiver

    Wireless slave receiver for multi-door STI lock control systems

    • Single-channel wireless operation at 9VDC for door locks and strikes
    • Integrates with STI Wireless Theft Stopper® master control units
    • Wall-mounted design for streamlined access control installations
    Usually Ships in 2-3 Weeks Free shipping over $499
    $165.40 $164.99 Save $0.41
    The item has been added Add to quote
    $165.40 $164.99 Save $0.41
    Save $0.41 Add to cart Add to quote
  • Save $0.15
    STI STI-6200WIR Wireless Theft Stopper Lock
    Add to Cart The item has been added

    STI STI-6200WIR

    STI STI-6200WIR Wireless Theft Stopper Lock

    Wireless lock strike with push-button control, 12VDC powered

    • Pairs with STI-34601 wireless doorbell button for credential-free access
    • Works in retrofit and new-build installations without hardwired readers
    • 12VDC operation integrates into wireless access control systems
    Usually Ships in 2-3 Weeks Free shipping over $499
    $100.14 $99.99 Save $0.15
    The item has been added Add to quote
    $100.14 $99.99 Save $0.15
    Save $0.15 Add to cart Add to quote
  • Save $0.04
    STI STI-6200R Theft Stopper 12V Powered Horn Strike (view 2)
    Add to Cart The item has been added

    STI STI-6200R

    STI STI-6200R Theft Stopper 12V Powered Horn Strike

    12VDC electromagnetic strike with integrated horn for access control

    • Combines powered strike lock with audible horn output in single unit
    • 12VDC operation integrates with standard access control systems
    • Designed for coordinated door control and deterrent alerting
    Usually Ships in 2-3 Weeks Free shipping over $499
    $74.03 $73.99 Save $0.04
    The item has been added Add to quote
    $74.03 $73.99 Save $0.04
    Save $0.04 Add to cart Add to quote
  • Save $0.64
    STI STI-6200 Theft Stopper Lock Strike
    Add to Cart The item has been added

    STI STI-6200

    STI STI-6200 Theft Stopper Lock Strike

    Compact 9VDC electric strike for standard door frames

    • 9VDC alkaline battery powered, operates without building power
    • 5" W x 5" H x 2" D compact form fits standard door installations
    • Compatible with access control systems outputting 9VDC signals
    Usually Ships in 2-3 Weeks Free shipping over $499
    $44.63 $43.99 Save $0.64
    The item has been added Add to quote
    $44.63 $43.99 Save $0.64
    Save $0.64 Add to cart Add to quote
  • Save $0.06
    STI STI-6100-FR Break Glass Stopper Small French
    Add to Cart The item has been added

    STI STI-6100-FR

    STI STI-6100-FR Break Glass Stopper Small French

    Small French-sized break glass stopper designed for emergency access points in facilities requiring manual override capability

    • French-sized form factor fits space-constrained emergency access points without modification.
    • Mechanical installation requires no special tools or wiring, simplifying deployment.
    • 2-year warranty backs emergency egress reliability in access control architectures.
    Usually Ships in 2-3 Weeks Free shipping over $499
    $54.05 $53.99 Save $0.06
    The item has been added Add to quote
    $54.05 $53.99 Save $0.06
    Save $0.06 Add to cart Add to quote
  • Save $0.98
    STI Break Glass Stopper® - Large with Spacer - STI-4130EM
    Add to Cart The item has been added

    STI STI-4130EM

    STI Break Glass Stopper® - Large with Spacer - STI-4130EM

    Mechanical break glass stopper designed to provide manual emergency access override when electrical systems fail or power is unavailable

    • Purely mechanical activation operates independently of power, network, or electronic systems.
    • Integrated spacer accommodates standard commercial door frame geometries for direct fit.
    • Includes complete fixing kit, enabling straightforward installation without electrical wiring.
    Usually Ships in 2-3 Weeks Free shipping over $499
    $96.97 $95.99 Save $0.98
    The item has been added Add to quote
    $96.97 $95.99 Save $0.98
    Save $0.98 Add to cart Add to quote
  • Save $0.86
    STI Break Glass Stopper® Large with Spacer, French Labeling
    Add to Cart The item has been added

    STI STI-4130-FR

    STI Break Glass Stopper® Large with Spacer, French Labeling

    Large break glass stopper with spacer for STI TCP/IP stations

    • Integrated spacer simplifies mounting in access control and emergency systems
    • French labeling supports North American and international deployments
    • Compatible with STI break-glass stations using TCP/IP communication
    Usually Ships in 2-3 Weeks Free shipping over $499
    $72.85 $71.99 Save $0.86
    The item has been added Add to quote
    $72.85 $71.99 Save $0.86
    Save $0.86 Add to cart Add to quote
  • Save $0.86
    STI STI-4130 Break Glass Stopper Large with Spacer (view 2)
    Add to Cart The item has been added

    STI STI-4130

    STI STI-4130 Break Glass Stopper Large with Spacer

    Large break-glass stopper with integrated spacer for emergency egress

    • Integrated spacer design for reliable activation in life safety applications
    • Wall-mounted assembly compatible with STI emergency access systems
    • Standard electrical backing and mounting hardware for straightforward installation
    Usually Ships in 2-3 Weeks Free shipping over $499
    $72.85 $71.99 Save $0.86
    The item has been added Add to quote
    $72.85 $71.99 Save $0.86
    Save $0.86 Add to cart Add to quote
  • Save $0.60
    STI STI-4100EM-FR Break Glass Stopper Emergency Button Large
    Add to Cart The item has been added

    STI STI-4100EM-FR

    STI STI-4100EM-FR Break Glass Stopper Emergency Button Large

    Large-format break glass emergency button designed for immediate fail-safe activation in access control and emergency response systems

    • TCP/IP connectivity enables real-time alerting and logging across standard network infrastructure.
    • No proprietary gateways required — deploys on existing network architecture with parallel connectivity.
    • Includes complete fixing kit for wall or post mounting in interior and exterior locations.
    Usually Ships in 2-3 Weeks Free shipping over $499
    $87.59 $86.99 Save $0.60
    The item has been added Add to quote
    $87.59 $86.99 Save $0.60
    Save $0.60 Add to cart Add to quote
  • Save $0.76
    STI Break Glass Stopper® - Large, French Labeling
    Add to Cart The item has been added

    STI STI-4100-FR

    STI Break Glass Stopper® - Large, French Labeling

    Large break glass stopper with TCP/IP integration for emergency egress

    • TCP/IP networked control integrates with access control systems
    • Large format design fits standard emergency egress installations
    • French labeling supports multilingual facility requirements
    Usually Ships in 2-3 Weeks Free shipping over $499
    $58.75 $57.99 Save $0.76
    The item has been added Add to quote
    $58.75 $57.99 Save $0.76
    Save $0.76 Add to cart Add to quote