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We have one question asking where it is normal for a compass to have bubbles and another asking why compasses get bubbles, but we do not have a question clearly asking if handheld compasses exist that do not get bubbles.

So are there handheld compasses that do not get bubbles?

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  • Just a total side note that on boats most of the rather fancy bulkhead mounted compasses get bubbles, especially if they see a lot of sunlight, after a few years. There's compass fluid and a little port to refill them.
    – Eric
    Commented Mar 16, 2018 at 19:42

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The answer is yes, there are bubble free compasses. It seems that the trick to getting a compass to not have bubbles is to use a thermo-elastic capsule which flexes with the temperature changes.

K&R's thermo-elastic capsule is flexible, not brittle. This accomplishes two things: 1) the capsule flexes with temperature and altitude changes to keep out bubbles, and 2) the capsule doesn't develop leaking hairline cracks when you drop it (or step on it).

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The Cruiser's instruments are housed in a rugged zinc body with a thermo-elastic capsule for durable bubble-free performance,

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It seems like not many manufactures make these types of handheld compasses, but they do exist.

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