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Altimeters

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Altimeters

Altimeters support many outdoor activities

Altimeters come in different versions. They can be integrated into a watch or carried as an external device. The values are displayed clearly and accurately.

Altimeters are easy to use

Inletts are available in a wide variety of materials, each with its own special properties and advantages.

Altimeters should always be carried when in use

At ASMC, customers can choose from various altimeters. Especially at high altitudes, it is important to know exactly where you are. The oxygen supply decreases rapidly with increasing altitude and may then need to be supplied artificially. Exact altitudes are also very important during operations, as they often have to be documented. The accuracy of most (calibrated) devices is 2–20 meters.

Expert tip:

The rule of thumb for measuring altitude without technical aids

You need what is known as an isosceles right-angled forester’s folding-rule triangle. This can be used to determine the height of a tree. One side must be parallel to the tree, the other parallel to the ground – you are essentially looking along the tip of the triangle. When the tip of the tree is visible above the long side, you add the distance from the observer to the tree to the observer’s eye height; the result is the height of the tree.

There is also another method where you bend down and look backwards through your legs. Here the height, for example of a tower, is measured or calculated using Pythagoras’ theorem (a2+b2=c2). In doing so, your stride length or distance to the tower as well as your step height are taken into account.

Questions: Altimeters

Is there a difference between a Höhenmesser and an altimeter?

No, both are synonyms.

With which techniques does such a device measure altitude?

Altitude can be measured barometrically, with laser beams, microwaves (or Radar), sound, or GPS. Depending on the model, different techniques are used.

What does “sea level” mean?

This parameter, abbreviated as "NN", was the officially defined reference height and thus the zero level until 1992. Incidentally, it is not to be used as a synonym for above sea level and applies only in Germany. This parameter, abbreviated as "NN", was the officially defined reference height and thus the zero level until 1992. Incidentally, it is not to be used as a synonym for above sea level and applies only in Germany.

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