iCheck Fluoro - portable fluorometer for vitamin A analysis in milk,[1] food, premix, and biological liquids, like breast milk.[2] iCheck Chroma - portable photometer to measure vitamin A quantitatively in edible oils and plant fats. iCheck Carotene - portable photometer for total carotenoid analysis in beverages, food, vitamin premixes and biological liquids. Among others it can be used for the measurement of total carotenoids in cassava to select pro-vitamin A rich varieties. iCheck Iodine - portable photometer for iodine analysis in salt.[1] iCheck Iron - portable photometer to measure added and instrinsic iron in foods and premixes. iCheck Zinc - portable photometer to measure Zinc in wheat flour and premix. It was developed in cooperation with BASF & Teck.