Thermo Scientific™

Locator™ Plus Rack and Box Systems

 Related applications:
Cold Storage
Economically store up to 6,000 samples in the Thermo Scientific™ Locator™ Plus Rack and Box System that makes sample retrieval simple and consumes minimum liquid nitrogen. This indexed system is available with or without ultrasonic level monitor.

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  • Compact design to minimize space requirements while maximizing storage capacity
  • Suited for both manual and computerized inventory record-keeping methods
  • Outstanding temperature uniformity: samples are stored below -180°C, even when less than 2 in. (5cm) of liquid nitrogen remains in the vessel
  • Audible alarm that sounds when nitrogen level falls below safe range; dry remote alarm contact for remote monitoring
  • Advanced vacuum insulation to minimize liquid nitrogen evaporation and reduces operating costs
  • Secure locking to prevent unauthorized entry

Locator 4 Plus and Locator 8 Plus:

  • With level monitor
  • Outside Dia.: 55.8cm; Height 100.3cm

Locator Jr. Plus:

  • Without Level Monitor
  • Outside Dia.: 55.9cm; Height: 67.9cm

Locator 6 Plus:

  • Without Level Monitor
  • Outside Dia.: 66cm; Height :100.3cm


Stated vial capacity assumes 1.2/2mL Thermo Scientific™ Nalgene™ Cryogenic Vials


Indexed stainless-steel racks designed for use with 2 in. (5cm) Nalgene™ Cryogenic Boxes (larger racks available for storage of 5.0mL ampules in Locator Jr. Plus and Locator 4 Plus). Available with or without Liquid Nitrogen Level Monitor (optional, factory-installed monitor can also be purchased separately).


Thermo Scientific Nalgene Cryogenic Boxes (order separately)

Compatible with:

  • Boxes, Nalgene, 2 in. for 1.0 and 1.5mL vials, 100 vials per box, case of 10 (CS509X24)
  • Boxes, Nalgene, 2 in. for 2mL vials, 81 vials per box, case of 40 (CS509X4); case of 20 (CS509X5)
  • Boxes, Nalgene, 4 in. for 5mL vials, 81 vials per box, each (CS509X10)
  • Thermo Scientific™ CryoClaw™ (AY509X18)
  • Cups, Suction, 2 replacements for CryoClaw (AY509X19)
  • Logbook (LT509X5)
  • Level Monitor, customer-installed: CN509X3-70 (120V, Jr.); CN509X6-70 (120V, 4); CN509X10-70 (120V, 6); CN509X9-70 (120V, 8); CN509X1-70 (220V, Jr.); CN509X4-70 (220V, 4); CN509X11-70 (220V, 6); CN509X7-70 (220V, 8)
  • Rack, for 5.0mL vials (does not include boxes) (HR509X19A)
  • Vials, 1mL, case of 500 (AY509X32)
  • Vials, Cryogenic, 1.2mL, case of 500, 1.2 ml (AY509X13)
  • Vials, 1.5mL, case of 500 (AY509X33)
  • Vials, Cryogenic, 2.0mL, case of 500, 2.0 ml (AY509X12)
  • Warranty varies by country, please contact us for details

Optional wheeled accessory cart

For easy transport ›


Manuals & protocols