Equipped with Imported optical components and accepts observation tube up to the Length of 200mm. It ensures permanent and undisturbed focus, even with different types of dense liquids.The angular scale is divided Oto 360 in steps of 1 clegreeto enable direct reading 0.005 and estimation of 0.002. ISS units enable direct reading 0.1 and by estimation to 0.05 sugar degrees. Supplied with two polarimeter tubes 100mm & 200 mm. Sodium lamp, powersupplyfor sodium lampand raxinecover in plywood cabinet.