High quality optics and rotating half shadow system located at the front ensure best resolution and accurate result. Angular scale from 0 to 360° enable direct reading to .05 and by estimation to .02° sugar scale from 30 to 120 I.S.S. Provided direct reading to 0.1 and by estimation to 0.05 supplied with polarimeter tube 200mm accepts sodium vapour lamp assembly (optional) The use 16 Shree Sati Scientific Industries of sodium lamp with power supply is recommended ith this instrument and can be supplied along with. However white light can be used up to 12°
(b) sodium lamp : complete with stand & transformer for use with cat no. 1142 & 1143 at extra cost.