Sentry Interlock’s EZ Modlock product line is a door interlocking system designed specifically for today’s cleanroom and cGMP environments. These systems are used to control the entry and exit of personnel and material in a secured area with multiple doors using predesigned logic scheme and fail safe electric locks. Unique customer requirements and changing security protocols dictate the need for an interlocking system that provides the flexibility to make easy and quick changes and is maintenance free. Oftentimes these systems are designed from scratch, assembled in a job shop and are difficult to install using cumbersome wiring schemes. Then any changes to the interlocking scheme makes onsite changes difficult and time consuming.