Digital Photo Colorimeter Digital Photo Colorimeter BL-570 are the finest colorimeters that combine convenience in operation with high precision & accuracy in analysis. Highly sensitive photo sensor and use of latest IC technology make the instruments highly rugged, accurate &economical in maintenance. Provision has been made to switch on the lamp source only when required, thereby increasing the life of the photocell. The instruments are extremely useful for quantitative estimation of several chemical substances including blood chemistries in chemical/clinical labs, pharmaceutical industries, medicine plants, water treatment plants, agriculture universities etc.