Thermo Scientific TSU Series -86°C ultra-low temperature freezers deliver a range of features including:   

• More Samples, Less Freezer Footprint: Choice of five capacities maximize sample storage while minimizing the freezer's physical space inside the lab   * Choice of Refrigeration: For the strictest tolerances, our high-performance mode provides the tightest temperature uniformity and peak variation†—for most applications, energy-savings mode offers excellent temperature control, plus up to 15% savings on energy usage compared to high performance mode   * New Cabinet + Vacuum Insulation Panel Technology: increases the internal capacity of 2 inch vials over previous generation freezers—gain up to 76% more capacity in the same footprint†— with 1mL CryBank tubes   * Sample Storage Capacity: Five sizes accommodate any size lab, featuring the industry’s leading capacity per footprint specifications††    Innovative, touch-screen user interface: Monitor the freezer’s health 24/7 and access a detailed event log—simply touch the heart icon on the main screen to see freezer's temperature, and access settings and operating parameters   * Built-in USB port: Obtain a record, simply download a report of the current event log to a portable drive   * Environmentally-friendly, CFC/HCFC free refrigerants   * NEW refrigeration system: with high-efficiency compressors for exceptional performance and reliability   * Brazed plate heat exchanger for more efficient heat transfer—induction brazed joints to reduce leak potential and improve reliability   * Power management system: protects against a wide range of voltage variation and is easily accessible through the touch-screen display   * Remote alarm contacts: with 4-20 milliamp output compatible with external alarm and monitoring systems   * Two rear access, 1-inch (25mm) ports: allow for the use of inexpedient probes or instrumentation.   * On-board data storage: Store up to 15 years worth of temperature and event data on our on-board computer   * Easily exchange data: Use the new USB port to download freezer temperature and event log data, or freezer settings from one freezer to another   * Easy-to-remove, washable filter: Provides protection against dust on the condenser, which can cause reduced refrigeration performance and increased risk to samples   * NEW reinforced shelves: Store up to 278 lbs. of samples (depending on freezer model) on our reinforced, stainless steel shelving   * NEW outer door gaskets: 4x7 heated gasket provides four touchpoints of security and seven zones of protection, maximizing cabinet temperature and eliminating frost build-up   * NEW inner doors: Four polystyrene insulated inner doors help maintain cabinet temperature during openings and feature embedded rare earth magnets, eliminating exposed latches or magnets   * Several optional features including LN2 and CO2 back-up system, chart recorder, stainless steel inventory racking solutions, and hands-free locking option