Dortronics - Custom Door Control & Access Solutions Made in the USA

Dortronics Systems, Inc. is a premier U.S.-based manufacturer of high-quality door control hardware and electronic locking solutions, operating from its Sag Harbor, NY headquarters. Founded under Sag Harbor Industries—originally established by Charles Edison, son of Thomas Edison, in 1946—Dortronics became a standalone brand in 1990 and has since been dedicated to American-made engineering and manufacturing. The company’s roots reflect a philosophy of small-batch, high-precision production focusing on flexibility, speed, and local craftsmanship.

Dortronics offers an extensive product lineup, from electromagnetic locks, electric strikes, interlock controllers (“mantraps”), key switches, and push/buttons, to alarm annunciators, access control keypads, and comprehensive touchless door control systems. With a flexible in-house facility capable of off‑the‑shelf and fully custom-fabricated solutions, the company lives up to its tagline: “What you want, when you want it”, delivering tailored hardware quickly and affordably. Their capabilities span cleanrooms, healthcare, correctional facilities, education campuses, cannabis dispensaries, retail, and beyond—addressing complex security needs with precision-engineered, code-compliant products.

• Made in the USA: Designed and built in Sag Harbor, NY, with transparent manufacturing standards and rapid turnaround 
• Customization & Speed: Quick-ship off‑the‑shelf inventory paired with bespoke options—custom shapes, finishes, engravings—ensuring fast delivery 
• Innovation in Safety: Introduced touchless and motion-activated technologies (e.g., 5278 Proximity Switch, 6612 Motion Detector) to support hands-free and hygienic access control 
• Robust Interlock Systems: Offers scalable interlock controllers (e.g., 48500 series for five doors and 48900 series for nine doors) with intuitive programming and no need for external software
• With decades of heritage and a forward-looking approach to security hardware, Dortronics delivers durable, high-integrity, and adaptable door control solutions—backed by U.S.-based manufacturing, engineering support, and a commitment to rapid, client-focused fulfillment.