With its advanced N-Prime™ microprocessor control system and PID temperature management, these FN units offer very precise, constant temperature. The dual displays show large, bright characters, visible from far across the laboratory. In sterilization mode, the user is warned if the instrument is out of the correct temperature range, perhaps due to power failure, for absolute sterilization. An independent safety thermostat takes over in the unlikely event of a failure of the main control system. Triple insulation reduces energy consumption while ensuring homogeneous temperature throughout the chamber. An adjustable vapor exhaust port enables these models to be used for drying. FN 055/120 can be equipped with N-Smart™ and NuveCom™ as an option and all the advantages of N-Smart™, such as recording temperature values up to ten years with one hour intervals as digitally and graphically, can be used.