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.
  • STI White Notched Replacement Shell for Stopper® - KIT-AP2100-W

    STI

    SKU: KIT-AP2100-W

    STI White Notched Replacement Shell for Stopper® - KIT-AP2100-W

    • Direct mechanical swap maintains original mounting footprint and TCP/IP interfaces.
    • 9VDC power requirement unchanged—no controller or network reconfiguration needed.
    • White notched shell replaces damaged Stopper® Station housings without touching strike logic.
    $41.36 $28.99 Save $12.37
    The item has been added
    Free shipping over $499
    $41.36 $28.99 Save $12.37
    Add to quote
  • Image coming soon

    STI

    SKU: KIT-AP2100-GZA

    STI Green Notched Replacement Shell for - KIT-AP2100-GZA

    • Direct replacement shell restores Stopper Station function without full assembly swap.
    • Engineered for HID credential readers on 9VDC circuits — no rewiring required.
    • Notched geometry and four-point mounting ensure precise mechanical alignment on reinstall.
    $41.36 $27.99 Save $13.37
    The item has been added
    Free shipping over $499
    $41.36 $27.99 Save $13.37
    Add to quote
  • STI Replacement Heater for STI-7510 and STI-7511 series (view 3)

    STI

    SKU: KIT-7500-HTR

    STI Replacement Heater for STI-7510 and STI-7511 series

    Direct replacement heater for STI-7510 and STI-7511 locks

    • 9VDC wired heating element for temperature-sensitive access control
    • Integrates with TCP/IP and RS-232 control systems
    • Wall-mount design for straightforward installation and replacement
    $138.65 $86.99 Save $51.66
    The item has been added
    Free shipping over $499
    $138.65 $86.99 Save $51.66
    Add to quote
  • STI KIT-320 Replacement Wiring Harness for the Universal Stopper® Series wi...

    STI

    SKU: KIT-320

    STI Replacement Wiring Harness for the Universal - KIT-320

    • Rated 9V DC to match Universal Stopper series power specs, preventing intermittent lock cycles.
    • TCP/IP-ready design integrates strike status and commands into network-based access control platforms.
    • Purpose-built for Universal Stopper series, enabling harness swaps without full hardware replacement.
    $44.42 $30.99 Save $13.43
    The item has been added
    Free shipping over $499
    $44.42 $30.99 Save $13.43
    Add to quote
  • STI KIT-318 Adapter Plate

    STI

    SKU: KIT-318

    STI KIT-318 Adapter Plate

    • Eliminates custom fabrication by providing a standardized mounting interface for electronic strikes.
    • Operates at 9VDC, aligning with standard strike circuit power provisioning in access control systems.
    • Simplifies multi-door deployments by standardizing strike installation across varied frame geometries.
    $22.99
    The item has been added
    Free shipping over $499
    $22.99
    Add to quote
  • STI KIT-314 Adapter Plate for HID Credentials

    STI

    SKU: KIT-314

    STI KIT-314 Adapter Plate for HID Credentials

    HID adapter plate for STI lock/strike hardware integration

    • Integrates HID credential readers with existing STI assemblies
    • Operates at 9VDC for standard access control power supply
    • Wall-mount adapter plate eliminates controller redesign needs
    $27.29 $17.99 Save $9.30
    The item has been added
    Free shipping over $499
    $27.29 $17.99 Save $9.30
    Add to quote
  • STI Replacement Cable for STI-6200 STI-6205 and - KIT-18015-RC

    STI

    SKU: KIT-18015-RC

    STI Replacement Cable for STI-6200 STI-6205 and - KIT-18015-RC

    • Direct replacement cable restores power continuity in STI-6200, STI-6205, and STI-6210 strikes.
    • Rated 9VDC — matches native supply voltage of the STI-6200 series without reconfiguration.
    • Drop-in fit eliminates access control system reprogramming after harness failure or damage.
    $11.75 $7.99 Save $3.76
    The item has been added
    Free shipping over $499
    $11.75 $7.99 Save $3.76
    Add to quote
  • STI KIT-10-FR Replacement Glass for STI-4100-FR (view 2)

    STI

    SKU: KIT-10-FR

    STI KIT-10-FR Replacement Glass for STI-4100-FR

    Replacement glass for STI-4100-FR 10-door access control system

    • Supports up to 10 doors with 9VDC wired power and RS-232 communication
    • Direct compatibility with STI-4100-FR lock and strike hardware
    • Maintenance replacement component for multi-door facility deployments
    $22.21 $14.99 Save $7.22
    The item has been added
    Free shipping over $499
    $22.21 $14.99 Save $7.22
    Add to quote
  • STI Replacement Break-Glass Tool for Break Glass - KIT-08

    STI

    SKU: KIT-08

    STI Replacement Break-Glass Tool for Break Glass - KIT-08

    • Drop-in replacement for Stopper II and Weather Stopper II frames; no new drilling required.
    • Operates at 9VDC, matching existing Stopper series power architecture for seamless integration.
    • Restores break-glass capability on installed housings without requiring full unit replacement.
    $12.34 $7.99 Save $4.35
    The item has been added
    Free shipping over $499
    $12.34 $7.99 Save $4.35
    Add to quote
  • STI KIT-06297F Lock/Strike Accessory Kit - F Spacer

    STI

    SKU: KIT-06297F

    STI KIT-06297F Lock/Strike Accessory Kit - F Spacer

    F Spacer kit for HID lock/strike systems at 9VDC

    • F-series spacer corrects gap alignment between strike plate and door frame at install.
    • Designed for HID credential environments; operates at 9VDC for low-voltage door hardware.
    • Includes wall fixings, anchors, and cable entry inserts for clean surface-mount deployment.
    $40.87 $25.99 Save $14.88
    The item has been added
    Free shipping over $499
    $40.87 $25.99 Save $14.88
    Add to quote
  • STI Fiberglass Enclosure, Lock, Cable Pass-Through Brush Seal (view 3)

    STI

    SKU: ES2316BR

    STI Fiberglass Enclosure, Lock, Cable Pass-Through Brush Seal

    Fiberglass enclosure with lock and brush seal for outdoor access control

    • Fiberglass construction withstands outdoor exposure without corrosion or warping.
    • Integrated lock secures access control readers and credential hardware from tampering.
    • Brush seal pass-through manages cabling entry while maintaining environmental protection.
    $383.05 $235.99 Save $147.06
    The item has been added
    Free shipping over $499
    $383.05 $235.99 Save $147.06
    Add to quote
  • STI EPSPBKT EnviroArmour Swing Panel Mount Brackets

    STI

    SKU: EPSPBKT

    STI EPSPBKT EnviroArmour Swing Panel Mount Brackets

    • Mounts 9VDC electric strikes to swing door frame panels without jamb mortising.
    • Solves constrained-jamb retrofit installs where surface-panel mounting is required.
    • Pairs with compatible DC-powered electric strikes to complete the strike assembly.
    $53.75 $33.99 Save $19.76
    The item has been added
    Free shipping over $499
    $53.75 $33.99 Save $19.76
    Add to quote
  • STI Metal Protective Cabinet with AC/Heater - - EM243608A1

    STI

    SKU: EM243608A1

    STI Metal Protective Cabinet with AC/Heater - - EM243608A1

    • UL Type 4 rated metal enclosure guards electronics from dust, moisture, and vandalism.
    • Integrated AC and heater maintains safe operating temps in harsh or exposed environments.
    • Protects internal equipment up to 21″ L × 33″ H × 6″ D with horizontal wall mount.
    $6,486.00 $4,288.99 Save $2,197.01
    The item has been added
    Free shipping over $499
    $6,486.00 $4,288.99 Save $2,197.01
    Add to quote
  • STI EFSPBKT EnviroArmour Swing Panel Bracket Kit

    STI

    SKU: EFSPBKT

    STI EFSPBKT EnviroArmour Swing Panel Bracket Kit

    Door frame bracket kit for STI swing panels, 9VDC access control

    • Steel construction with environmental protection for secure panel mounting
    • Designed for STI swing panel assemblies in access control installations
    • Operates on 9VDC standard compatible with access control power supplies
    $64.51 $40.99 Save $23.52
    The item has been added
    Free shipping over $499
    $64.51 $40.99 Save $23.52
    Add to quote
  • STI EFAPBKT EnviroArmour Fiberglass Stationary Panel Bracket Kit

    STI

    SKU: EFAPBKT

    STI EFAPBKT EnviroArmour Fiberglass Stationary Panel Bracket Kit

    Fiberglass bracket kit for access control panel mounting and weather protection

    • Fiberglass construction withstands outdoor exposure on stationary panel installations
    • Includes bracket assembly and mounting hardware for wall-mount door strike systems
    • 9VDC operation integrates with standard access control and reader configurations
    $64.23 $40.99 Save $23.24
    The item has been added
    Free shipping over $499
    $64.23 $40.99 Save $23.24
    Add to quote