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I am curious how many folks have used the Sokkisha/Lietz/Sokkia TM1A on the job? As it is useful as a second-order instrument, I am a bit surprised why there seems to be little information (such as a user manual) available. Have also been looking for information on brackets that would mount a Sokkisha RED2L EDM on a Sokkia DT5A Digital Theodolite. A user manual for the RED2L also seems to be hard to find. I know these are a bit old in this day and time, but am wondering if there are manuals available. Would also be interested in anyone's experience with these fine instruments.


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  • I have a tm-1A and really enjoy it

    i think it's nicer than the wild t2

    i think I have the manual somehwere

  • Land Surveyor

    Yes, forty years ago when they were one of the better combinations to use until HP & Wild came out with the first "Total Stations". IMHO ... get on the "For Sale or Trade" portion of this website and get the right equipment for the job because even if you get both of the above calibrated I doubt you could get 2nd order results from this old equipment which should be donated to a muesem. You've oblivously got some batteries for the Red2L but you're going to need a bracket to place it on the theodolite or use a "puck" in the tribrach. Either way you're using 1980's technology in the field and office as you'll either have to hand write fieldnotes in a book or hand enter the data in a eletronic data collector.Ā 

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