Designed to accept observation tube upto 220 mm length. Its improved rotating half shadow system at the front ensures perfect focus and clear definition. With angular glass scale 0-360°, divided into degrees and reading upto 0.05° with micrometer. A sugar scale from 30° to 120° reads upto 0.1 sugar degree. Supplied complete with two polarimeter tubes, 100 mm and 200 mm and dust cover.