This Ultra-Low Temperature Chest Freezer from Thermo Scientific Revco is engineered with the laboratory in mind. ULT1350-10-D is specially designed to provide highly stable temperatures even after door openings and are quiet enough to be in the lab. It has an improved compressor technology, user-friendly control panels and standard RS-232 and 4-20mA outputs. The control panel allows for user-defined alarms and setpoints and features audible and visual alarms. The standard RS-232 and 4-20mA outputs allow for easy connections of many freestanding and independent monitoring devices. This is a highly recommendable unit for long term biological and chemical storage.