Combined refrigerators and freezers, or double-temperature equipment, are offered by Laboquest. They come in a variety of capacities and have two distinct compartments that may be monitored separately, cooling units, and refrigerants. The freezer and refrigerator in this series have direct cooling and fan cooling, respectively. Blood plasma cryopreservation, low-temperature resistance testing on biological materials, and cryogenic testing on specific materials are all applications for this combination product.