Door Interlock Modules

Sentry Interlocks Door Interlock Modules

The cornerstone of Sentry Interlocks’ solutions is the customized, preprogrammed modules or door interlock controllers, which are shipped to your facility in an enclosure, ready for installation. A streamlined design with a full wiring schematic, labeled terminals that clearly show which wire to attach, optional plug-and-play Cat 5 cables, and minimal wiring components make these modules easy to set up with no specialized on-site programmers required.

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Designed for simplicity, these modules can be easily customized to your operations.

EZ ModLock 2-Door System

For the simplest 2-door arrangement the EZ ModLock 2-Door Modules is the perfect solution. When using manual, usually unlocked doors, this door interlock controller creates interlocking systems for gowning rooms, locker rooms and other mantrap and airlock applications. With an optional two-door expansion module, you can create a system for up to four doors. An optional timer system lets you set a time delay for opening doors, allowing you to condition the air in the airlock.

  • Designed for the simplest interlocking applications like locker rooms or gowning rooms.
  • Manual, normally unlocked doors
  • No interface with Access Control, Fire Alarms or Building Management Systems (BMS)
  • Interlocking control is locally done via DIP switches
  • Interlocking logic is limited to 4 doors max
  • Timer option allows a resettable time delay to condition air in the airlock
  • Most economical solution
Complete 2-door interlock system product family with accessories.

EZ ModLock Muti Door System

If you require a system for two to ten doors, the EZ ModLock Multi Door System offers:


  • Management of up to 10 doors in operating suites, warehouses, cleanrooms and other settings.
  • Compatibility with normally locked doors, including automated, manual and roll-up doors
  • The option to interface with building management systems, access control devices and fire alarms to let these doors integrate with your existing systems.
  • Optional timers and a suite of accessories add further functionality.
  • Local control
Multi-door interlock control system modules and accessories collection.

Weblock System

This door safety interlock system offers:


  • Supports for up to 100 doors, including normally-locked roll-up, manual and automated doors.
  • The ability to integrate with your fire alarms, building management and access control.
  • The WebLock Network Bridge connects to your facility’s local area network allowing administrators to monitor and manage the system from anywhere in the world.
  • The graphical user interface makes it easier to review events and to make changes to the system without needing a software degree
WebLock product line showing all door interlock system components.

Why Choose Sentry Interlocks Modules?

Our mantrap door systems tackle the biggest challenges of traditional, built-from-scratch systems. Those traditional systems are often complex and require expert programmers to install and upgrade. The modular, plug-and-play design and labeled connections ensure easy, quick installation and adaptation as your needs evolve. A two-year limited warranty offers peace of mind. Our modules also:

  • Work with a wide range of doors and door accessories rated 24VDC.
  • Offer security control for a range of environments, including air showers, material air locks, gowning rooms, personnel air locks, and pass-thrus.
  • Are compatible with Access Control such as biometrics, keypads, badge readers, card swipes or other systems to keep your operations secure.
  • Have a time delay function to isolate and condition the air in the airlock with UV lamps or ventilation blowers.
  • Support centralized monitoring by offering input to external monitoring systems, helping you evaluate door status at all times.
  • Include LED indicators to make troubleshooting easy.
  • Easily integrate with third-party door accessories with adapters or use our branded, full suite of adapters, LED indicators, audible alarms, wave sensors and emergency overrides to fully customize your solution.

Our integration services and best-in-class customer support ensure you get responsive, customized help when you need it. With our attention to detail, follow-through and clear communication, you get the support you need for both straightforward and specialized system needs.

Contact Us for Secure Interlock Doors

At Sentry Interlocks, we have years of experience helping leaders in the pharmaceutical, biotech and other industries create tailored interlock door systems for their needs. Ready to create your own system? Contact us to speak with a team member or call us at 267-824-2580.