Apr 05 2018

Strange Observations – Part 20

Category: BlogBKeyes @ 12:00 am
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Continuing in a series of strange things I have seen while consulting at hospitals…

Did you know that you cannot make home-made devices and connect them to the fire alarm system?

That includes magnetic door hold-open devices. This picture shows a threaded rod installed to extend the MHO target to allow the door to remain less than fully open.

The threaded rod is not UL listed for use on the fire alarm system.