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Pol-Eko ZLN-UT 500 Ultra-Low Freezer

Ultra-low freezers are used for deep freezing of biotechnological samples and other materials which should be stored at very low temperature.

Chamber Capacity: 483L
Temperature Range: -86 to -50°C

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Pol-Eko ZLN-UT 500 Ultra-Low Freezer

Ultra-low freezers are used for deep freezing of biotechnological samples and other materials which should be stored at very low temperature. The ZLN-UT 500 is one of the largest ultra low freezers available from Pol-Eko, holding a massive 352 sample boxes (or 28 512 test tubes!)

Pol-Eko ultra low freezers can be fitted with the Smart or Smart PRO controllers. Set and monitor temperature and ramp settings, using the user friendly touch screen. It also records key events such as when the door is opened, and for how long. All data can be easily downloaded, for the ultimate in record keeping and accountability.

As with most Pol-Eko laboratory equipment, the ZLN-UT Freezer can be customised to meet the requirements of your lab. Choose between a Smart or Smart PRO controller (See full details below).

Features of the Pol-Eko ZLN-UT 500 Freezer:

  • Natural air convenction
  • Two compartments, each with eight sample racks
  • 12-16 boxes per rack
  • Holds up to 176 boxes per compartment
  • Space for up to 28 512 test tubes or 352 boxes per unit
  • Full colour display touch screen control panel
  • Option for multi-segment time / temperature programs
  • Visual and audio open door alarm
  • LAN and USB ports for data transfer
  • Internal memory for programs and data storage
  • Lockable door
  • Cools from ambient temperature to -80 °C in 210 minutes
  • Optional wheels (not as standard)
  • Premium materials:
      • Interior: Stainless steel meeting DIN 1.4301
      • Choose Smart or Smart PRO controller (See below)
      • Temperature protection class 2.0 when fitted with the Smart controller OR class 3.2 when fitted with the Smart PRO controller

Compare Smart vs Smart PRO Controllers

The ZLN freezer can be equipped with a Smart or Smart PRO controller (Smart Pro only available with Premium Model), for intuitive real-time recording. Keep a complete record of the internal temperature, times that the door was opened/closed, and a real-time record of temperature programs for the best in record keeping and reporting. Data is presented as a table or chart, depending on your preference. The Smart PRO allows you to login to the device using a card or keyring, or even using the NFC on your smartphone. With the SMART or SMART Pro controllers able to instantly stream data to your computer or smartphone, accountability and event recording has never been so easy.

Spoilt for choice? Compare your options:

SmartSmart PRO
ControllerSmartSmart PRO
Temperature protection class23.2
InteriorAcid-Proof StainlessAcid-Proof Stainless
Account typesUser / Admin / Super admin
Program segments6100
ScheduleNo10 saved
NetworkLANLAN and WiFi

Useful documents:

Pol-Eko Website

ZLN-UT 500 SMART Data Sheet

ZLN-UT 500 SMART PRO Data Sheet 

Additional information

Dimensions95 × 85 × 201 cm



Lead Time

Usually 6-8 weeks

Air Convection


Chamber Capacity


Temperature Range

-86 to -50°C

Shelves (Standard/Max)


Power Supply

230V 50-60Hz


Smart, Smart Pro


2 years (Manufacturer Warranty)


Pol-Eko Website

ZLN-UT 500 Smart Data Sheet

ZLN-UT 500 Smart Pro Data Sheet

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