Von Duprin MaxHold Shearlock 4100 Series Control MaxHold Shearlock 4100 Series Control MaxHold Shearlock 4100 Series Control/Timer

Von Duprin is a reputable manufacturer known for producing high-quality commercial door hardware solutions such as exit devices, electric strikes, and access control systems. Their products are widely recognized for their durability, security features, and ease of use in various industrial and commercial applications.[oss-gpt-20b]

Need your Von Duprin repaired or tested?

We specialize in the repair and refurbishment of high-end industrial control electronics and power systems like this unit.

⚙️ Fast Diagnostics – Same-day evaluation available
🔁 Reliable Turnaround – Most jobs ship within 5–10 business days
🧰 Expert Technicians – Decades of board-level experience
✅ 1-Year Warranty – Every repair fully guaranteed

📞 Call Now: 1 (336) 969-0110

Free Estimates • Industrial-grade testing • Nationwide Service

⚡ Call to Purchase AI Services — help us build the next Grace Blackwell GX10 node.

Industrial AI Hardware Recovery — Free Diagnostic • Pay Return Shipping Only

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We reclaim and repair GPUs and industrial AI hardware (cards, PSUs, fan modules, VRM boards). Free estimate — you only pay return shipping if you decline.