Right fit. Right partner. Right choice.
Thermo Scientific -80°C lab freezers, also known as ultra-low freezers (ULT), are designed first and foremost to protect samples. They're also designed to maximize storage capacity by offering a range of upright and chest models to accommodate a variety of laboratory footprint requirements. Additional features include energy-savings models that meet today's sustainability demands. Protect your samples with the right, energy-efficient ultra-low temperature freezers; choose from our TSX, Standard Performance (STP) or Performance platforms.
Use our ULT selection guide, browse through our portfolio below, or ask one of our experts to help tailor a solution specific to your needs.
Quick links
Which kind of ULT freezer best fits your needs?
Performance ultra-low freezers |
Standard performance (STP) ultra-low freezers |
Premium (TSX) ultra-low freezers |
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| Dependable sample storage is our standard. Choose an ultra-low temperature freezer designed specifically for reliability. | Exceptional performance for everyday assurance. Protect your precious samples and reduce your energy costs with an ultra-low temperature freezer that's built to last. | Peace of mind protection for precious samples. Because your focus should be your discoveries. Our focus is keeping them safe. Our TSX ultra-low temperature freezers provide prime protection, even in the most taxing conditions. | |
| Daily energy consumption | as low as 12.0 kWh/day | as low as 10.5 kWh/day | as low as 7.9 kWh/day |
| Door opening recovery | as low as 19 min | as low as 11 min | as low as 17 min |
| Heat rejection (HVAC load) | Medium | Low | Lowest |
| Sound | Normal | Quiet | Most quiet |
| Cooling technology | 2-stage cascade compressor | 2-stage single speed compressors |
2-stage variable speed compressors Powered by V-Drive |
| System refrigerants | HFC1 | Natural HC2 | Natural HC2 |
| Upright freezer storage capacity | 280-360 boxes3 | 300–600 boxes3 | 400–700 boxes3 |
| User interface | Microprocessor control | HIC: Touch button controller | VIC: Touchscreen |
| Certifications | UL, cUL, CE, RoHS, xFDA4 | UL, cUL, CE, RoHS, FDA Class II, ENERGY STAR®5 | UL, cUL, CE, RoHS, ENERGY STAR® |
| Outer doors | Double | Single | Single |
| U.S. EPA SNAP compliant | ✓ |
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| EU F-Gas compliant | ✓ | ✓ | ✓ |
| Chest freezers | ✓ | ||
| Soft grip handle | ✓ | ||
| Thin wall high density storage | ✓ | ✓ | |
| On-board event/temp. recording | ✓ (service only) |
✓ | |
| Remote monitoring compatible | ✓ | ✓ | ✓ |
| Access/user setting controls | ✓ | ✓ | ✓ |
| USB port for data download | ✓ (service only) |
✓ | |
| Setpoint security | ✓ | ✓ | ✓ |
| Access key/card control options | ✓ | ||
| Explore Performance ULTs | Explore STP ULTs | Explore TSX ULTs |
- Hydrofluorocarbon (HFC) refrigerants: legacy refrigerants, higher global warming potential (GWP)
- Natural hydrocarbon (HC) refrigerants: Environmentally friendly, low global warming potential (GWP), SNAP approved.
- 2-inch (5cm) high boxes
- xFDA certification in various countries. Example: FDA Class 1-US, CFDA-China
- On select 600 box STP models
3D Demo: Explore TSX Ultra Low Temperature Freezers
A software tool for exploring the internal and external benefits of the Ultra Low Freezers. Hot spots throughout the tool feature data, researcher opinions, and technical specifications. Mouse operation enables rotation, zoom, and measurement.
Stability and reliability, without sacrifice.
With temperature security, quick recovery, and reliable validation, Thermo Scientific Ultra-Low Temperature (ULT) freezers are designed to deliver confidence — all while reducing your energy footprint.
Featured video: Cold storage solutions
Mechanical cryogenic chest freezers for long-term biological sample storage
Thermo Scientific mechanical cryogenic chest freezers are designed for long-term biological sample storage (-140°–150°C) without LN2 as a cooling medium. With this chest freezer configuration 100% of the interior space of the freezer is usable for sample storage.
Cryogenic storage
Matrix storage (Barcoded tubes)
Standard storage tubes
Racks, boxes and accessories
