Stable Temperature Control:        Using microprocessor technology the MDF series provides precise and uniform storage temperatures regardless of ambient conditions, with a settable temperature range from -20°C to -30°C in 1°C increments. Built-in alarm and product safety functions are also provided as standard features.        Sample Protection Functions:        Digitally Adjustable Temperature Setpoint, High and Low Temperature Alarm, Door Ajar Alarm, Remote Alarm Contacts, and Non-Volatile Memory Backup. Both visual and audible alarms are standard.        Quiet Operation:        Energy-efficient refrigeration design requires no noisy condenser fan. In combination with low dB level compressor, this unit is uniquely quiet and perfect for in-lab installations.        Easy Maintenance:        Natural cooling of the unit’s condenser eliminates the need for a condenser fan. Periodic cleaning of a filter is therefore not required, making periodic maintenance minimal. Standard castors and leveling feet make relocation easy.        Refrigeration:        The designed and built rotary compressor offers high performance, reliability and peace of mind. Heated mullion under door gasket prevents frost build up.        Sample Storage Security:        Standard keyed door lock and integrated padlock hasp are standard features.        Adjustable Shelving System        Four adjustable wire shelves with over 100 pound capacity each allows for flexible material storage configurations