This might seem like a basic question but can anyone recommend a good digital compass for setting "0 Horizontal" Azimuth to true North.
Lately I've been using a simple map reading compass and I place in the gap on my Topcon & Pentax kit no problem, this method is rough and ready but it works for our small scale jobs, but for some reason the compass needle now swings 90 degrees to the left when placed in this gap ???
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