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Custom BioGenic Systems Isothermal LN2 Freezers


5 Years Vacuum, 2 Years Electronics/Parts

Item Number 55156V 55305V 55305VEH 55505V 55505VEH
Model Number
LN2 Capacity
30 L
70 L
89 L
93 L
140 L
Exterior Dimensions: w x d x h
26 x 37 x 45 in. | 660 x 939 x 1143 mm
37 x 48 x 47.5 in. | 939 x 1219 x 1206 mm
37 x 48 x 58 in. | 939 x 1219 x 1473 mm
47 x 54 x 52 in. | 1219 x 1371 x 1320
47 x 54 x 58 in. | 1219 x 1371 x 1473 mm
Interior Dimensions: h x dia
29 x 21 in. | 736 x 534 mm
29 x 31 in. | 736 x 787 mm
37 x 31 in. | 940 x 787 mm
29 x 40 in. | 736 x 1016 mm
34 x 40 in. | 864 x 1016 mm
Max Storage: Vials [2 mL]
Max Storage: Blood Bags [50 mL]

Custom BioGenic Systems Isothermal LN2 Freezers

Isothermal LN2 freezers from Custom BioGenics offer cryogenic dry storage for medical laboratories, universities and research facilities while reducing the risk of cross-contamination. Our patented technology creates a jacketed space in the walls of the freezer, maximizing storage space inside and minimizing the chances of cross-contamination. The wide lid makes it easy to access samples without affecting the temperature inside the freezer.

Cryogenic dry storage eliminates many of the risks associated with liquid nitrogen contact. User safety is of paramount importance in any laboratory setting, and dry storage is less risky for the user than coming into contact with liquid nitrogen. Cryogenic storage methods that rely on contact also subject the vials to shrinking and expansion, which lead to sudden explosion. Dry storage allows for consistent temperatures and more stable storage. All our vapor storage freezers accommodate standard rack systems and adhere to industry best practices for temperature uniformity.

Custom BioGenic Systems Isothermal Liquid Nitrogen Freezers offer liquid nitrogen storage temperatures without liquid nitrogen contact. Liquid nitrogen is stored in our patented jacketed space in the wall of the freezer. This technology offers safe dry storage for your samples. With no liquid nitrogen in the storage area the risk of cross contamination and the safety risks associated with the handling of liquid nitrogen are greatly reduced. This also means that the entire storage space can be used for inventory. Our wide lid opening provides easy, unrestricted access to samples and wont affect the temperature inside the freezer. All Isothermal freezers use our time tested and reliable 2301 controller with a dual temperature display, autofill and many additional features. Custom BioGenic Isothermal Liquid Nitrogen Freezers have an industry best temperature gradient that averages -193°C inside the storage area.


  • Store samples at liquid nitrogen temperature with no liquid nitrogen contact.
  • Same internal usable space as existing liquid nitrogen freezers (no lost storage space).
  • Greatly reduces possibility of samples cross contamination.
  • Comes standard with 2301 Auto-Fill / Monitoring System.
  • Accommodates all standard rack systems.
  • Added user safety eliminating contact or splashing of liquid nitrogen.
  • Increased interior visibility.
  • Minimal interior temperature gradient.
  • Round space saving design.
  • Stainless steel construction.
  • Castor mounted for easy mobility.
  • Advanced woven lid gasket design.
  • Counter balanced lockable lid.
  • Annular fill and sensor tubes.


  • Aluminum square racks
  • Stainless steel square racks
  • Vertical racks
  • Mini racks
  • Canister and frame systems
  • Vials
  • Boxes
  • Canisters / Cassettes
  • Platform dividers

Why is dry storage important?

  • Dry storage greatly reduces the risk of cross contamination.
  • Added user safety by eliminating liquid nitrogen contact.
  • Utilize the entire storage space; no space lost to bulky platforms.
  • Liquid nitrogen temperatures with no liquid nitrogen contact.
  • Vapor circulation provides better visibility in the storage area.
  • Wide lid opening for easy access to all racks.
  • Accommodates all standard rack systems.
  • Industry best temperature uniformity.

Storage in liquid nitrogen can make vials shrink. This may cause liquid nitrogen to seep into the vials, which on re-warming, expand and subsequently explode as nitrogen vaporizes inside the vials. Dry storage eliminates this possibility. Also, the Isothermal design provides added user safety by eliminating contact with or splashing of liquid nitrogen.

Cross Contamination
Studies have shown that viral, bacterial and fungal pathogens can survive after suspension in liquid nitrogen. Infected samples can cross contaminate other samples in the same liquid nitrogen tank. Dry storage greatly reduces the possibility of cross contamination.

Our 2301 controller is time tested, reliable and designed to keep your sample storage safe and secure.

New 16 Port Connector:

  • 0-5 volt outputs provide temperature & level data for connection to existing alarm/monitor system.
  • 4-20 mA outputs provide temperature & level data for connection to existing alarm/monitor system.
  • Sequential and One-Fill-All-Fill input and output connection for filling systems.

New two-level temperature display option:

  • Temp. A displays temperature at the lid, approximately 11"(27.94cm).
  • Temp. B displays temperature inside the storage space, approximately 20"(50.80cm)

Additional Features:

  • Records 12 alarms & events such as fill start, fill stop, etc. with dated time stamp, printed or displayed.
  • Ethernet and auxiliary RS485 for future expansion.
  • Dedicated 24Vdc signal output to activate a third 24Vdc valve to control the LN2 supply.
  • Global Remote Alarm-Dry contact that switches during any alarm condition.
  • Date Log- Print or display Temp. A, Temp. B and level with date and time stamp.
SKU Number Alarm Capacity (Liters) Type 2.0 mL Vial Capacity 25-Well Box Capacity 81/100-Well Box Capacity Web Price Quantity Add to Cart
55156V 2301 Controller 30 L Isothermal LN2 Freezer 9,100 Please Inquire 91
55305V 2301 Controller 70 L Isothermal LN2 Freezer 22,100 Please Inquire 221
55305VEH 2301 Controller 89 L Isothermal LN2 Freezer 25,500 Please Inquire 255
55505V 2301 Controller 93 L Isothermal LN2 Freezer 40,300 Please Inquire 403
55505VEH 2301 Controller 140 L Isothermal LN2 Freezer 46,500 Please Inquire 465
LN2 Freezer - 30 L
Custom BioGenic Systems Isothermal LN2 Freezers
On Order