Sample protection. Energy savings. More capacity. Thermo Scientific Ultra-Low Temperature Freezers provide the energy-efficient solution to reliably store your most valuable assets.


Sample Protection

Tight temperature uniformity with 25% more capacity

Energy Efficiency

50% less energy (SNAP-compliant)

Quiet Operation

20x quieter

Start 2020 off right with the confidence that your samples are reliably protected.

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For a limited time, take advantage of special pricing to upgrade your ULT fleet!*

ModelDescriptionCat. No.Price
Choose from two sizes of our premium, flagship TSX units. All units include Energy Star™ rating, Thermo Fisher Cloud connectivity, and 12-year compressor warranty.TSX 500-Box Capacity 115VTSX50086ARAKQ1Request special pricing
TSX 500-Box Capacity 208VTSX50086DRAKQ1Request special pricing
TSX 600-Box Capacity 115VTSX60086ARAKQ1Request special pricing
TSX 600-Box Capacity 208VTSX60086DRAKQ1Request special pricing
Choose from two sizes of the Standard Performance (STP) units with either 4-shelf (FDE) or 5-shelf (RDE) configuration with green refrigerants, simplified controller, and outstanding performance with 5-year bumper-to-bumper warranty.Revco 500-Box Capacity 115VRDE50086FARKQ1Request special pricing
Revco 500-Box Capacity 208VRDE50086FDRKQ1Request special pricing
Revco 600-Box Capacity 115VRDE60086FARKQ1Request special pricing
Revco 600-Box Capacity 208VRDE60086FDRKQ1Request special pricing
Forma 500-Box Capacity 115VFDE50086FARKQ1Request special pricing
Forma 500-Box Capacity 208VFDE50086FDRKQ1Request special pricing
Forma 600-Box Capacity 115VFDE60086FARKQ1Request special pricing
Forma 600-Box Capacity 208VFDE60086FDRKQ1Request special pricing
*All listed freezers included with two shelves of racks and boxes

Click to contact a representative about special pricing in your area.

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 Average 10+ year old unit with ozone-depleting refrigerantsNew Standard Performance (STP) ULT with natural hydrocarbon refrigerantsTSX High Performance ULT with natural hydrocarbon refrigerants
Capacity/footprint – 2" boxes/cu ft445353
Max 2" box capacity400600700
Average energy usage (kw-hr/day)3012.58.8
Average annual energy costs (including HVC)$1488$620$435
Noise dBA625148
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Find the right series for your needs

*Valid in the United States (excluding Puerto Rico) and Canada while supplies last for orders received between January 1, 2020 and March 31, 2020 and only in connection with the products identified above. Specifications, terms and pricing are subject to change. Not all products are available in all countries. Please consult your local sales representative for details. Cannot be combined with other discounts or promotions. Offer void where prohibited, licensed or restricted by federal, state, provincial, or local laws or regulation or agency/institutional policy. Other restrictions may apply. Customer acknowledges that this offer may include a discount or other price reduction that must be properly and accurately accounted for and reported by customer in accordance with all federal and state laws, including without limitation the federal anti-kickback law (42 C.F.R. § 1320a-7b(b)(3)(A)) and regulations thereunder (42 C.F.R. §1001.952(h)).