And another On/Off power switch symbol!

We’ve seen much diversity of On/Off Power switch symbols here and here… and there’s more.

Here’s the latest addition to the gallery: I spied this on a piece of medical equipment (a Critikon Dinamap vital signs monitor).  It shows a dot centered in a circle for ON, and the same dot banished outside the circle for OFF. Luckily, they weren’t lazy and included the two words as well. This removes the possible confusion I’ve remarked on in my post on the Alaris symbology; it also provides a Rosetta stone for deciphering that one.