Ultra-Low Temperature Freezer Accessories

Optional components to enhance the security of your samples.

Enhance the already robust functionality of your ultra-low temperature freezer and your workflow with a variety of accessories and options designed to work seamlessly with your product selection.

CO₂ and LN₂ Back-up systems

Enhance security and your peace of mind with critical samples by using Thermo Scientific CO₂ and LN₂ backup systems with ultra-low temperature freezers. These systems inject liquid CO₂ or LN₂ into the cabinet when the cabinet temperature warms to preset level. The LN₂ backup system maintains temperature down to -80˚C with liquid nitrogen. The CO₂ backup maintains temperature down to -67˚C with CO₂.

Chart recorders

Record seven days of temperature performance at temperatures to -150°C using Thermo Scientific Chart Recorders for Ultra-Low Temperature Freezers. Recorders use 6″ (15cm) chart paper and are available as factory or field installed. These chart recorders are available as ink and inkless options. Refills of circular temperature chart recorder paper also available.

Circular paper charting system

HID Card Key Access System

Restrict access to samples and gain data records of personnel that accessed the freezer, opened the door, and the day, time and duration of the door opening with the Thermo Scientific Access Key Options for Ultra-Low Temperature Freezers. Our Access Key Pack includes 5 key cards. 

Thermo Scientific HID key card


Configurable interior shelves fit to your storage needs. These shelving units provide peace of mind by providing the ultimate organization and storage with ultra-tight temperature uniformity requirements. Stable. Reliable. And without the space sacrifice.

Stainless steel shelf for ULT freezer

Racks and Boxes

When storage is at a premium, maximizing the space you do have is essential. Organize and increase your square foot storage with our ultra-low temperature freezer racks, sliding drawer racks (including options for tubes), adjustable side access box racks and microplate racks in standard or deepwell. We have an option that will fit your freezer model and application. 

Stainless steel freezer rack with trays

TSX Freezer Exterior Light Kit

Improve the monitoring and security of your samples stored in TSX Freezers with exterior lighting that visually indicates system alert and alarm codes.   A green, orange or red glow at the bottom of the freezer provides continual system operational status indication at glance.   This option is especially useful in busy labs and those with multiple freezers.  

TSX Freezers show with exterior lighting showing system status in green, orange and red glow at the bottom of the freezer.

Everything you need to protect, organize and track your samples.

Sample storage at ultra-low temperatures provides security for biological specimens and derivatives of those specimens, genomic material, and compounds over extended periods of time. Thermo Scientific offers a deep portfolio of storage containers and consumables designed to ensure the long-term protection and security of your samples inside the freezer and in formats and sizes that optimize space.


Preserving the information associated with stored samples is a critical part of the storage process, as unidentified samples in storage are unusable and serve no purpose. Thermo Scientific has proven solutions to organize, track and preserve your samples, including storage container sealing and barcoding systems.

Researcher removing samples from storage