Aluminum Altimeter|Clinometer, Battery-Free, Professional, Multi-Purpose, Waterproof, Shockproof, Compact, Silver

Inexpensive alternative to my old Suunto that finally died. So far works fine and is actually slimmer.

does the job

This product is clearly a clinometer. If you want to measure how tall a tree is or the degrees of a slope, this tool could be used for that. However, if you buy this product as advertised, wanting an altitude reading at a glance, then this product is not for you. It might be a good product, but advertising it as an altimeter is misleading.

Not as smooth as a Suunto or Burton clinometer, but it works. The lens isn't quite as clear either. I suspect they used some plastic where there's used glass?

Gorgeous and sturdy housing. Smooth and accurate reading wheel. Hefty weight to the tool. I absolutely love the thing!