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Student Surveyor

Sokkisha (Sokkia) TM-20C

Hi all,

I have started buying old theodolites and transits to compare what there is now with what was used back then. My last purchase was a Sokkisha TM-20C and I can't find a manual anywhere. Can anyone help?  This old unit works very weel but a manual would be icing on the cake. Remember, the Sin of nothing is nothing.



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  • GEO Ambassador

    My dad has one of these... cool instrument.. maybe you can upload some photos and show the rest of the members what it looks like...attached is a guide from USGS which may offer some help...ill look for the manual i found years ago..

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