Laboratories and biobanks

Temperature mapping of ULT freezer -80 °C

For -80 °C ULT freezers, biobank storage and laboratory freezers where product quality depends on stable ultra-low temperature.

In brief

A ULT freezer needs a different mapping approach than a standard freezer. Drawers, racks, door influence, loading and recovery after opening determine where the critical product storage positions are. The study substantiates not only whether the freezer stays within range, but also which zones are suitable for storage and where routine monitoring is defensible.

Critical points

Where is the risk in -80 °C storage?

In ULT storage, small differences matter: measurement position, door behaviour and sensor response determine whether the conclusion is defensible.

Drawers and racksNot every drawer or box position responds the same to door movement, loading and air circulation.
Recovery after openingThe study should show how quickly critical zones return after normal use.
Sensor responseAt very low temperatures, logger choice, calibration range and placement are especially important.
Storage restrictionsThe conclusion should make clear which zones are suitable and which positions are better avoided.
Tools and 3D proposal

Start with a practical indication

Use the tool hub or create a 3D measurement-point proposal directly. It helps make room layout, product zones, doors and risks concrete before you choose a service level.

3D mapping tool for measurement points and logger placement
Approach

Four steps to a substantiated measurement report

The route stays the same, whether you measure yourself with rented loggers or outsource the full execution.

1

Situation mapped

We map your room, limits and risks, and select the appropriate service level.

2

Tailored measurement plan

Measurement points, risk zones, measurement duration and acceptance criteria are defined in advance.

3

Measurement of your choice

You measure yourself with rented loggers, or we come on site. The report is equivalent in both cases.

4

Report delivered

Data, analysis and conclusion in one report, ready for inspection or internal quality documentation.

View pricing and service levels

FAQ

Frequently asked questions

How many measurement points are needed for a ULT freezer?
It depends on drawers, racks, product locations, door use and risk. A small ULT freezer often needs fewer points than a large unit with many racks, but the plan should cover all relevant storage zones.
Does a ULT freezer need empty and loaded mapping?
Not always. The choice depends on the objective and QMS requirements. Representative or simulated loading may be sufficient; sometimes a separate condition is needed to understand loading or door effects.
Can I place the loggers myself?
Yes, if the plan is clear and positions are documented. We can supply loggers with instructions and then review the data for a dossier.
Does the mapping advise on routine monitoring position?
Yes. Mapping can support a representative or critical routine monitoring location. Alarm settings and final release remain part of your own QMS.