I bought one of these compasses for my car. It is completely
inaccurate --- so much so that if I'm heading east it says
I'm going south! You are supposed to be able to connect the
compass to a power source so that it's illuminated, but the
instructions contain no mention of how to do that. In sum,
buying this "compass" is like flushing money down the toilet. 1 star

I bought my wife a Brunton Rally for her Jeep Wrangler. Originally, I mounted it in the center of the dashboard and she mentioned that it indicated NW intermittently - even times she knew she was driving straight South. When the compass was moved away from that location, it read accurately. Apparently, a magnet in the stereo was throwing it off.

I moved it to a position straight in front of the instrument pod and have not had a problem since. It has a great classic look in a 4X4 and it has never let us down.

Check your mounting location first for stereo, speaker or motor magnets. 5 stars

Before buying a product I know nothing of, I do lots of research on the Internet. I first tried a Ritchie compass for my car (made in the USA), but its accuracy was questionable. I then focused on a Silva 58, made in Sweden, but the cost was high. Further research showed that Amazon sells a Brunton Nexus -- which is made by Silva and is exactly the same model as the Model 58, for an incredible price. The shipping was free, it came in three days, and it looks and works great. It has comnpensators that you can adjust, but I didn't need to. Attaches to the center of my dash, very easy to read and always accurate. Overall, a great product at a great price. 5 stars

I travel around the area to teach CPR and First Aid classes. The compass serves me well when my internet maps fail me.
I was a little disapointed when I found the lighting has no connecters but only wires to connect to a voltage source. Not a big problem though. 4 stars

Works well, much better than the cheap ones. It's screw adjustments easily compensates for engine magnetism. The same settings work for both my vehicles, a 4 cylinder VW and a six cyclinder Dodge minivan. I mounted it with velcro so I'd be able to move it between them and so didn't hook up the light. 5 stars