An ultra-low temperature freezer (ULT freezer) is a type of refrigerator that stores contents at −40 to −86 °C (−40 to −123 °F). ULT freezers are commonly used in scientific research laboratories to store biological samples, such as blood, plasma, DNA, RNA, and proteins. They are also used in the pharmaceutical industry to store vaccines and other temperature-sensitive medications.

ULT freezers use a variety of technologies to achieve such low temperatures, including cascade compressors, vacuum insulation, and liquid nitrogen backup systems. These technologies are designed to minimize heat transfer and ensure that the freezer maintains a consistent temperature.

ULT freezers are typically upright or chest freezers. Upright ULT freezers are more common in laboratories, as they provide easier access to samples. Chest ULT freezers are more commonly used in the pharmaceutical industry, as they can store more samples in a smaller footprint.

ULT freezers are an essential tool for many scientific and pharmaceutical research laboratories. They allow researchers to safely store temperature-sensitive samples for long periods of time.

Here are some of the key features of an ULT freezer:

  • Temperature range: ULT freezers have a temperature range of −40 to −86 °C (−40 to −123 °F).
  • Capacity: ULT freezers come in a variety of sizes, with capacities ranging from 100 to 1000 liters.
  • Features: ULT freezers may have additional features, such as temperature monitoring, alarms, and data logging.

When choosing an ULT freezer, it is important to consider the following factors:

  • Capacity: How much sample storage space do you need?
  • Temperature range: What temperature range do you need?
  • Features: What features are important to you?
  • Price: How much are you willing to spend?

Once you have considered these factors, you can choose the ULT freezer that is right for your needs

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