TX-22

Very dependable and reliable altimeter. I have owned my thommen altimeter now for ca. 15 years, and it's still as good as it was when it was new. BIG advantage: does not need batteries, since it is a mechanically working altimeter. Also, no problems with low temperatures. Only disadvantage: price

I've owned my Thommen since 1975. Used it on Rainier, Hood, Mex Volcanoes, and generaly knocking around in smaller mountains. It's worked flawlessly. I really like the no battery aspect, the accuracy, and the fact that it doesn't need a satellite fix. What I really love about altimeters is that you can pinpoint your location on a trail in rough, wooded terrain where there's no chance of getting a compass bearing. Cool too, when someone asks how far it is to the top...

I have had a Thommen for over 20 years. While the digital altimeters have their advantages( And I own one), this tool is consistently accurate, easy to use and doesn't rely on batteries! The drawback is the price.