WTW® spectrophotometers of the photoLab® 7000 Series offer the ease-of-use and precision of a premium filter photometer with the versatility of modern spectrophotometers from routine analysis to special tasks.Take the benefits of the photoLab® 6100 VIS or 6600 UV-VIS upgrade offer to the photoLab® 7000 Series and find the information here! Another photometer model? Talk to us!