A freezer includes a plurality of evaporators coupled to a payload bay with a multiplicity of coolant tubes in each evaporator, wherein each tube enters and then exits the payload bay, further comprising one or more cryogenic valves coupled to the coolant tubes; a pump to force coolant flowing through the evaporators; sensors coupled to the evaporators of the freezer to monitor vital parameters of the freezer; a processor; a wireless telemetry system to communicate one or more measured characteristics of the freezer in accordance with a service level agreement to a remote computer; and at least one notification component that provides a notification associated with a specific customer responsive to the measured characteristic of the service crossing a pre-defined threshold.