Auto Photo Colorimeters offered are made available in Absorbance & %T Modes and come with auto zeroing facility. Providing for accurate & stable performance, these come in compact finish and can be operated with both mains cum inbuilt rechargeable battery supply. These are made available under model SMI-AYL-105APC (Digital) and feature std glass filter, mini volume of 1 ml, 3 digit, bright red 7 segment LED display, working range from 400-700 nm and output OD (0 to 1.99), %T of 0 to 199. The system also delivers accuracy of 0.5% FSI and features Selenium Photocell/Photodiode detector support for efficient performance.