metwurst is looking to replace its horrid little radial vacuum gauge with something with greater precision.
On offer is an electronic analogue gauge with a range from 5 torr to 2 millitorr, at a reasonable price. Actually the unit does measure to atmospheric pressure, but there's only one graduation on the scale between 5mmHg and ATM.
In the eyes of an experienced bee, is this going to be a useful unit for the kinds of vacuum distillations most frequently carried on here (allylbenzenes, related ketones, and phenethylamines), or is a larger range needed?
metwurst's mechanical vacuum pump attains in the neighborhood of 2x10-3 torr on paper, so achieving a vacuum in that range isn't a problem, but is it a useful range for this kind of work?