Review by: bigdrop, 2004-04-15
A great concept with a poor execution.
The Brunton Eclipse compass seems overly susceptible to permanent bubble formation in the vile.
Brunton addresses this issue in their online FAQ:
“Why is there a bubble in my compass?
The bubble can be caused by using the compass at higher elevations and/or exposure to cold temperatures. The bubble forms as the liquid in the vial expands or contracts at a rate faster than the rigid plastic vial, which forms a vacuum or a 'bubble'.
The bubble will normally disappear when the compass is returned to a lower altitude or returned to room temperature. Should the bubble persist, place the compass in a warm spot, like a sunny windowsill, so the fluid in the vial will warm and return to its original volume.
Please be advised that the fluid in the compass is used to dampen or slow down the movement of the magnetic needle. Having a small bubble in the vial will not affect the accuracy of the compass.”
However, in a span of two years I have owned 3 (through warranty exchange) Brunton Eclipses and all of them formed permanent bubbles that would not go away. The bubbles where so big that they actually pushed the magnetized disk against the vile and in order to get a reading I had to tap the compass to overcome the friction between the disk and vile. Needless to say the compass wasn’t trust worthy and MEC agreed to give me a full refund.