Thermo Scientific TSD Series upright ULT freezers features state-of-the-art refrigeration, rugged construction and easy-to-use microprocessor controls and other features including:   

• Microprocessor Controls: Centralized, knee level information center, including microprocessor control and monitoring system ensures all controls and displays are easy to reach and read   * State-of-the-art, refrigeration system: improves temperature control and increases reserve BTUH capacity, resulting in a more stable temperature sample   * 5 in. (127mm) foamed-in-place, polyurethane insulation: reduces power consumption, maintains temperature setpoint and combined with triple-point door gasket, provides longer holding time in the event of a door opening   * Rugged, heavy gauge, cold-rolled steel cabinets: with a powder coat paint finish for a uniform exterior that resists chipping and rust   * 1 in. (25mm) access ports: allow for the use of inexpedient probes or instrumentation   * Secure inner doors: Four inner doors reduce cold air loss and improve temperature recovery after door closings   * Glaveneel interior   * Power Management System: with low voltage surge protection and buck/boost   * Easy-to-remove, washable filter: Provides protection from dust on the condenser, causing reduced refrigeration performance and increased risk to samples   * Simplified installation: with new easy-roll 2 inch locking casters   * Single-hand operation: Easy-to-use, padlock-compatible, ergonomic door handle with integrated key lock   * Optional CO2 or LN2 back-up: Optional choice of CO2 or LN2 safety back-up systems for additional sample protection in the event of a power or mechanical failure   * Optional chart recorder: Optional built-in chart recorder can be installed at knee level on TSD -40°C models