Cole-Parmer presents the StableTemp 3.5 cubic foot chest ultra low freezers designed to fit in areas where space is limited, and to meet cold storage needs as low as -86°C. Insulation panels in the cabinet minimize heat gain, improving temperature stability. Separate inner storage chambers have their own insulated doors which offer independent access to storage space, minimizing frost buildup inside the chambers and providing maximum protection of stored samples. The microprocessor controller is simple to use and has an easy to read operational status display. Other features include a sample port for external temperature probing, a heated pressure equalization port for easy door opening, and casters for portability.