Category Archives: Altimeters

Altimeters measure the height above sea level by measuring barometric pressure. Altimeters and barometers are similar in that they both measure atmospheric pressure; however, an altimeter has additional functionality which allows pressure readings to be converted to altitude. An aneroid altimeter consists of a box or chamber partially exhausted of air, having an elastic top and a pointer to indicate the degree of compression of the top caused by the external air.

The Society has a number of different altimeters in its collection.

Altimeters

Altimeters measure the height above sea level by measuring barometric pressure. Altimeters and barometers are...

Altimeter, Pennwalt Wallace & Tiernan

This altimeter is one of a pair. They are marked “Pennwalt” “Wallace & Tiernan” Model...

Altimeter, Short & Mason

F.2453. This altimeter is calibrated in feet and inches of mercury. Pocket watch style brass...

Altimeter, Topley Altimeter

This altimeter is marked “No. 8070, Compensated, The Topley Company, “D.L.S. special.” It comes with...

Altimeter, American Paulin Systems

Altimeter, Micro, Model M-2, s/n NS1201K, with Manual "American Paulin System, Altimetry Manual"

Altimeter, Thommen Everest

Hand held THOMMEN EVEREST pocket altimeter. This altimeter is made of leather plastic and metal...

Altimeter, E.R. Watts & Son

Brass altimeter, 8 cm in diameter x 3 cm depth with a glass cover. The...