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Maximize Profits with the LR100 Electric Latch Retraction Kit: Dealers, Don’t Leave Hardware Margins Behind

Jun 3, 2025 | Access Control

LR100 Electric Latch Retraction Kit retrofit hardware on push bar

Cut the Core Drilling: SDC WPT Wireless Power Transfer Device Makes Retrofits Easy

Messing with door cores is one of the biggest headaches for security dealers retrofitting electrified hardware—especially when dealing with wood or fire-rated doors. Fortunately, the SDC WPT Wireless Power Transfer Device solves that problem by delivering power and data across the door gap without any moving parts, wires, or core drilling.

Ideal for both retrofit and new construction, this RF-powered solution simplifies installations, minimizes vandal-prone wiring, and keeps projects on schedule. Whether you’re updating an older access control system or installing electric locks on a wood or steel door, the SDC WPT gives you the power—literally—to get the job done cleanly and compliantly.

Key Product Features

  • Wireless RF power transfer—no door core drilling required
  • Compatible with steel and wood doors
  • Transfers both energy and data (REX, DPS, latch status)
  • Visual LED status indicator
  • Field-selectable dual voltage output (12VDC or 24VDC)
  • Up to 1/4” (7mm) door gap tolerance
  • Flexible mounting on latch, hinge, or top frame
  • No moving parts or exposed wires—zero wear points
  • Adjustable unlock trigger (1–90 seconds)
  • Includes fixed 4-second unlock trigger for standard REX

Use Cases & Dealer Benefits

The WPT is a retrofit-friendly, code-compliant solution designed for:

  • Failsecure Electrified Locks and Latches: Power mortise, cylindrical, or rim locks without wiring hassles.
  • High-Traffic Doors: Reduce wear and tear from wire loops and moving parts.
  • Historic and Finished Doors: Maintain door aesthetics without compromising functionality.
  • Healthcare and Schools: Perfect for touchless entry installations using wave-to-open sensors.
  • Compliance Upgrades: Ideal for projects needing to meet UL fire and burglary ratings.

Why Dealers Love It:

  • No Core Drilling = Faster Installs: Save labor and avoid damaging fire-rated or wood doors.
  • Reduced Callbacks: No wires to break or degrade over time.
  • More Tolerant Alignment: Easier to install than inductive wireless devices.
  • Upsell Opportunity: Bundle with electrified locksets, exit devices, and wave-to-open switches.
  • Profitable Retrofits: Unlock more margin on existing door openings where wiring is difficult.

Technical Summary

  • Power Input (Frame Side): 600 mA @ 24 VDC
  • Power Output (Door Side):
    • 600 mA @ 12 VDC
    • 300 mA @ 24 VDC
  • Door Gap Tolerance: Up to 1/4″ (7mm)
  • Alignment Tolerance: Horizontal & vertical < 5/64” (2mm)
  • Dry Inputs:
    • (1) 4-second fixed unlock trigger
    • (1) 1–90 second adjustable unlock timer
  • Dry Outputs (Frame Side):
    • (2) SPDT, 1A @ 30 VDC resistive
    • (2) SPST-NO, 100 mA @ 60 VDC resistive
  • Environmental Rating: -4°F to 140°F
  • Weight: 1 lb
  • Certifications:
    • UL 10C Positive Pressure Fire Tests
    • UL 1034 Burglary-Resistant Locking Mechanisms

Note: For use with failsecure (power-to-unlock) locks only. Not compatible with failsafe or continuously dogged locks.

How the SDC WPT Works

Unlike inductive systems that require precise coil alignment, the WPT uses RF energy, which:

  • Transmits power as radio waves across the door gap.
  • Converts the RF signal into usable DC voltage via an internal receiver.
  • Transfers data (REX, DPS, latch status) along with power.
  • Is less sensitive to vertical and horizontal misalignment than coil-based systems.

This makes the WPT more installer-friendly and reliable in real-world deployments—especially in field conditions where perfect alignment isn’t always possible.

Accessory Highlight: WPT Drill Jig

For installers working with solid or particle-filled wood doors, SDC offers a WPT Drill Jig Assembly (part #SDC-WPT), available from JustDoorToolz. This makes prep quick, clean, and precise—ensuring a secure, code-compliant fit for every install.

Partner with SESP for Your SDC Installations
Southeast Security Products represents SDC and other best-in-class manufacturers across the Southeast U.S., offering hands-on support, product expertise, and dealer-focused programs to help you grow your business. Whether you’re building your first smart home package, upgrading to next-gen connectivity, or integrating high-performance technology into a larger security system, we can help you select the right solutions to power your installations. Contact us today for pricing, training, or to request a demo of the WPT Wireless Power Transfer Device.

Visit sesproducts.com or reach out to learn more about how we can support your next project.

The LR100 Electric Latch Retraction Kit by SDC transforms existing panic hardware into electrified exit devices—and more importantly for dealers, it lets you capture high-margin hardware sales instead of giving them to locksmiths. SDC pioneered this category, and their patented technology now offers seamless retrofit compatibility, low power consumption, and dealer-friendly installs—all backed by top-tier support through Southeast Security Products.

Retailers often sub out the hardware to locksmiths, handing over valuable profit by outsourcing the entire electrification job. With the LR100 kit and SDC’s DoorSnap app, dealers can supply the hardware themselves, subcontract install labor if desired, and keep both control and margin in-house.

Key Features of the LR100 Series Retrofit Electric Latch Retraction Kits

Sources: Site content from Southeast Security Products sesproducts.com

  • Motorized latch retraction and dogging for smooth push/pull operation

  • Low current draw: 1.5 A inrush, 200 mA continuous

  • QuietDuo™ technology ensures silent performance

  • Certified for fire-rated and panic hardware

  • Works with both high-traffic manual doors and low-energy operators

  • Available in one-piece and space-saving two-piece (LR100‑EM) models

  • Supports access control triggers and automation systems

Why Dealers Should Supply Hardware (Not Locksmiths)

1. Retain Lucrative Hardware Margin

Access control hardware, especially electrified door hardware, carries significantly higher margins than labor. By allowing locksmiths to supply parts, dealers lose out on this profit, even when they supply the labor. Capturing the hardware sale enables dealers to maintain full control of specifications, pricing, and billing.

2. Quote Confidently with DoorSnap

Many dealers hesitate to handle hardware due to uncertainty over parts and fit. SDC’s free DoorSnap app eliminates that obstacle: submit a photo of the door and exit device, and receive a complete Bill of Materials for the LR100 kit, mounting plates, power supplies, and accessories. This professional, accurate quote eliminates guessing—and the need to outsource hardware sourcing.

3. Fast, Field-Friendly Installs

The LR100 kit is designed for retrofit simplicity—often installable without removing the exit device from the door. This saves time, minimizes callbacks, and reduces complexity (fewer holes, less wire routing). Dealers can easily perform the install using their own crews or subcontractors, knowing the hardware fits and performs as expected.

Business-Driven Use Cases: Electrify Profitability Across Industries

  • K–12 schools and campuses upgrading mechanical exit devices for secure access while complying with ADA requirements

  • Hospitals and healthcare facilities needing silent, reliable electrified locks

  • Offices and warehouses integrating ELR with low-energy door operators

  • Government and correctional settings requiring monitored hardware to meet strict standards

Technical Snapshot & Certifications

  • Input: 24 VDC ±10%; 1.5 A inrush / 200 mA holding

  • UL 305 Panic Hardware, UL 10C Fire, ULC‑S104, ANSI/BHMA A156.3 Grade 1 certified s

  • Compatible power supplies: SDC 602RF, 602RFUR1, 634RF, and 631RF

  • Supports monitoring (REX, Latch Status) to meet access control system and fire code requirements

Seamless Dealer Process with DoorSnap & Support

1. Estimate: Snap a couple of photos of the door and exit device in the DoorSnap app.

2. Plan: Receive a complete Bill of Materials with kit model, power supply, monitoring items, and accessory list.

3. Quote: Supply the hardware yourself, ensuring maximum margin.

4. Install: Use your own technicians or subcontract installation—labor separated from hardware.

5. Support: Rely on SDC and Southeast Security Products for technical assistance and model selection, backed by decades of electrified hardware expertise.

Final Takeaway: Dealers—Own the Opportunity

Every touch point with a mechanical push bar is a profitable opportunity to supply electrical hardware. Dealers who rely on locksmiths to provide hardware are forfeiting margin and control. The LR100 kit—supported by the DoorSnap app and Southeast Security Products—empowers dealers to capture that value with confidence and ease.

Partner with SESP for Your SDC LR100 Kit Installations

Southeast Security Products represents SDC and other best-in-class manufacturers across the Southeast U.S., offering hands-on support, product expertise, and dealer-focused programs to help you grow your business. Whether you’re building your first access control package, upgrading a campus, or retrofitting doors in a secure facility, we can help you select the right solutions to power your installations. Contact us today for pricing, training, or to request a demo of the LR100 Electric Latch Retraction Kit.

Visit sesproducts.com or reach out to learn more about how we can support your next project.

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