Research
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Polarimeter – Research 400mm BDI-161
The latest design to accept tubes up to 400 mm Complete with 100 mm 200mm, 400mm polarimeter tube.
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Polarimeter Research 220mm BDI-158
Latest polarimeter equipped with imported optical components and to accept observation tube up to 220mm length Sensitive and accurate glass scale is divided to read angular degrees and also carries sugar scale in ISS units.