File talk:Vacustat.jpg

This is a McLeod gauge
The pictured device is clearly a McLeod gauge. I haven't seen this one in person, so I don't know if it performs a vacuum-level regulation function (which the term "vacustat" would seem to refer to—compare thermostat and humidistat), but I don't see how a McLeod gauge could possibly do that by itself. PointyOintment (talk) 08:15, 3 August 2017 (UTC)