FARGO — The principal of a liquid-in-glass thermometer is that the liquid inside a very narrow tube will contract and expand with temperature variation. The top of the liquid represents the ...

FARGO — The principal of a liquid-in-glass thermometer is that the liquid inside a very narrow tube will contract and expand with temperature variation. The top of the liquid represents the ...

An accurate and safe alternative to traditional, industrial mercury-in-glass thermometers has been announced. The new Digi-Tel electronic thermometer series is available from Tel-Tru Manufacturing ...

This article was originally on a blog post platform and may be missing photos, graphics or links. See About archive blog posts. Years ago, when my children were young, I remember walking into the ...