I’ve been tinkering again.
I wanted some spirit thermometers for working in sub zero temperatures. They are useful for tracking the weather and snow conditions.
I found some simple thermometers on a brewing site that spanned the range I needed, +50°c to -42°c. They came in a simple plastic case which protected the glass in transit and even provided a hanging loop which is useful, but if I’m going to leave a couple of these hanging on tree branches around the camp, I wanted something a little more robust for when they are in use.
So, sifting through some brass tube in my engineering chest, I found one just the right size and made sleeves for a couple of them.
Handily, they still fit into the plastic sleeve for transport as well which is a bonus.