The UV-1800 UV-VIS spectrophotometer has a 1 nm resolution, a total that's the best in its class. It's all in a small body that's easy to use and can even be controlled by a PC if desired. This works with all European Pharmacopoeia standards and uses a Czerny-Turner mount to create a strong optical system. All stray light and wavelength controls are also easy to manage when you use this device. This will also use a toluene/hexane solution to make all the items you have to operate with carefully.