Our premium TSX ultra-low freezers (ULT) meet the highest sustainability, temperature management and reliability standards for -80°C and -70°C storage. Powered by V-drive technology, these state-of-the-art, upright freezers provide energy savings of up to 70% without compromising sample protection. They're quiet and enable lower HVAC costs with very low heat ouptut. Manufactured in a zero-waste facility, the newly expanded premium series is built with natural refrigerants and water-blown foam insulation.

  • US EPA SNAP and EU F-Gas compliant refrigerants
  • Significant energy savings without compromising sample protection
  • Available in four upright sizes
  • Whisper-quiet operation
  • Meets ultra-tight temperature uniformity requirements
  • Touchscreen puts information at your fingertips

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Choose your premium TSX ULT freezer by capacity and footprint

Make the most of your lab space with a choice of sizes that can hold from up to 400 (2-inch) boxes in a footprint of 7.42 sq. ft. all the way up to 700 (2-inch) boxes in a 11.86 sq. ft. footprint.

  400 Boxes* 500 Boxes 600 Boxes 700 Boxes
  400 box TSX ULT freezer 500 box TSX ULT freezer 600 box TSX ULT freezer 700 box TSX ULT freezer
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Capacity 19.4 cu. ft. (549 liters) 24.1 cu. ft. (682 liters) 28.8 cu. ft. (816 liters) 33.5 cu. ft. (949 liters)
2mL Vial Capacity 40,000 50,000 60,000 70,000
Interior
(DxWxH)
28.3 x 23.1 x 51.2 in
71.9 x 58.8 x 130.1cm
28.3 x 28.8 x 51.2 in
71.9 x 73.0 x 130.1cm
28.3 x 34.4 x 51.2 in
71.9 x 87.3 x 130.1cm
28.3 x 40.0 x 51.2 in
71.9 x 101.6 x 130.1cm
Exterior
(DxWxH)
37.6 x 28.3 x 78 in
95.5 x 71.9 x 198.1cm
37.6 x 34.0 x 78 in
95.5 x 86.4 x 198.1cm
37.6 x 39.6 x 78 in
95.5 x 100.6 x 198.1cm
37.6 x 45.2 x 78 in
95.5 x 114.8 x 198.1cm
Shipping Weight 665 lbs. (302kg) 721 lbs. (327kg) 790 lbs. (358kg) 894 lbs. (406kg)

*Box capacity is in terms of 2-inch (5cm) high boxes.

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Configure your ultra-low storage solution

Find an ultra-low temperature freezer by walking through a series of selections based on your lab space requirements. A representative will contact you soon with a recommendation.

Find your freezer


What is V-drive technology?

Unlike standard, single-speed compressors that cycle on and off, our V-drive technology runs at variable speeds to adjust cooling performance to the conditions inside and outside of the freezer. It allows the freezer to adjust to factors such as start-up and door openings when a higher compressor speed is needed. When conditions are normal or stable, the drive runs at a lower speed while still protecting your samples.

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

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

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Featured Smart Note

I've heard that switching to -70°C can reduce energy, but is it safe for my samples?

Learn more about how switching from -80°C to -70°C as a setpoint is perfectly safe for most samples and can reduce energy consumption by up to 30%.

Download Smart Note

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Which plug type do I need?

  Standard Plug Type Voltage Hz
NEMA 5-15 115–120 60
NEMA 5-20 115–120 60
NEMA 6-15 208–230 60
Continental EU
230 50

Alternative plugs and cords are available to meet your special needs. Learn more ›

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Monitor your sample storage conditions 24/7

In the event of a power or mechanical issue, you need to be notified right away. Our wireless monitoring systems are designed for 24/7 monitoring of your ultra-low freezer's performance along with reporting, remote alarm notification and continuous data collection.

View our wireless monitoring solutions ›


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Cryogenic storage

Matrix storage (Barcoded tubes)

Standard storage tubes

Racks, boxes and accessories


How-to freezer videos

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