Category: ASME A17.1

What Is Door Lock Monitoring (DLM)?

Door Lock Monitoring, or DLM, is a critical elevator safety feature specified in ASME A17.1/A17.3 codes. It ensures that elevators cannot move unless the car doors

Who Controls the Elevator Data?

The Hidden Risk That Facility Leaders Can No Longer Ignore In an age where data drives decisions, transparency equals accountability. Yet in the vertical transportation