Actually, there is a home repair method that involves using the thermal bulb from an aftermarket gauge set, immersing it in a mixture of dry ice and alcohol, and cutting/splicing the tube a few inches from the original gauge head. It's difficult, but not impossible to do.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!