... useful instruments in laboratories of sugar industry, pharmaceutical industry, oil refining, foodstuff industry, chemical industry, universities and scientific research field. ... .² The automatic polarimeter uses Peltier principle to control the temperature.² It can be used for ... rotation<-15º, or optical rotation>+15º).Temperature Control Range15-30°CAccuracy+/-0.5°CRepeatabilitySample transmittance>1 ...