Peet Brothers published just about the best little booklet on altimeter use I have ever seen. They note it on their website...The Sportsman's Altimeter/Barometer".

A friend of mine had the model 88 Peet and it performed just as well as my Thommen. I have never seen their lower elevation model 80, but since it is temperature compensated I would bet it is pretty good too.

Cameron,

The other item in my photo other than the compasses is a wind speed device (Kestrel). This is a nice instrument, but really just a toy in my use. They are sold for sailors use more than outdoors use, but it is fun sometimes.