Request InfoTofra Inc.For optical microscopes, Tofra Inc. has released a filter wheel with an integrated controller that saves space. The wheel is compact, measuring 17 mm thick with a maximum package dimension of 180 mm. It can accommodate either 12 filters of 25-mm diameter or 10 filters of 32-mm diameter. Operable both automatically and manually, it runs on DC, connects through serial ports and can connect to a USB port through a serial-to-USB converter. An IR-blocking filter can be installed on the side facing the light source. 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