These 25mm button compasses are filled with a clear liquid that dampens the compass needle which helps to keep it steady and free floating, have a luminous dial, and are accurate enough to get a quick fix on direction.

Each compass is personally checked by me against a very accurate land surveying compass (I was a land surveyor in the Great North Woods for much of my life).

Note that the liquid in the compass may freeze at temperatures lower than -10 or -20 degrees F (-23C to -28C).  If you expect to be using your compass in colder conditions you may be better off purchasing the non-liquid filled button compasses.

These are very well-built, rugged compasses.

Sprinkle several button compasses throughout your gear.  They are inexpensive, small, lightweight, easy to use, and can suddenly come in handy to help you find your way or keep you from getting lost.

25-mm Button Compass Liquid Filled Specifications

• 25mm diameter by 9.5mm thick (1-inch x 3/8-inch)
• Liquid filled compass helps steady the free-floating compass card for easy reading
• Luminous dial with large easy to read markings
• Weight: 5.2 grams = .18 of an ounce (less than 1/5th of an ounce)
• Liquid in compass functions at low temperatures down to about -10 degrees F (-20 degrees C).