For long-term sample viability, choose the company that stands the test of time.

The legacy of your work is forever supported by ours.

When you store your samples in a -80ºC freezer, you need to know that they are safe for a week, a month, a year or even a decade. With a time-tested heritage in laboratory storage, bio-banking and cell therapy, Thermo Fisher Scientific provides the peace of mind that your work will last.

Browse through our portfolio and use our new ULT selection guide, or ask one of our experts to help tailor a solution specific to your needs.

Browse ULT freezers   Ask an expert

Industry Best Warranty

2 years parts and labor

2 years parts and labor


12 years compressor parts

12 years compressor parts


Energy Efficient Graphic

Sample security without sacrifice in a
sustainable way

The complete TSX Series family is ENERGY STAR certified.
  • 18x models

  • 4 sizes

  • 3 voltages

We are committed to offering sustainable solutions for your cold storage needs.

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Energy Efficiency

Energy Efficiency

Thermo Scientific TSX Series ultra-low temperature freezers are 25-42% more energy efficient compared to conventional-refrigerant freezer models.

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See the comparison

Comparison of energy usage between TSX Series freezers and conventional freezers during operation at -80°C over a 24 hour run time.

TSX40086DEppendorf F570
Power usage
0.33 kW0.48 kW
Energy Usage
7.9 kWh11.5 kWh
TSX40086D users saw a 31% reduction in energy use
TSX60086DEppendorf F570
Power usage
0.36 kW0.48 kW
Energy Usage
8.7 kWh11.5 kWh
TSX60086D users saw a 25% reduction in energy use

* Data for competitive models is from published specifications as of July 2017

TSX40086DPanasonic MDF-U56VC
Power usage
0.33 kW0.58 KW
Energy Usage
7.9 kWh12.48 kWh
TSX40086D users saw a 37% reduction in energy use
TSX60086DPanasonic MDF-U76VC
Power usage
0.36 kW0.58 kW
Energy Usage
8.7 kWh15.12 kWh
TSX60086D users saw a 42% reduction in energy use

Fastest door opening recovery on the market


TSX spends ~40% less time at warm temperatures—even with more door openings


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Revco™ RLE Series Ultra-Low Freezers

V-drive technology

Adaptive control of the V‑drive quickly and efficiently restores set point even during multiple door openings in a busy lab.

V-drive technology chart
Variable Speed Compressors (V-Drive) change speed in response to activity instead of cycling on and off like standard, single-speed compressors.