For many years, pharmaceutical industries and biological laboratories have relied on liquid nitrogen freezers to store certain materials that must be held at a temperature lower than what the average freezing unit can provide. Upright liquid nitrogen freezers are ideal for these industries because they do not take up a lot of space and can store quite a hefty amount of material. If you are in the market for an upright liquid nitrogen freezer, it can be hard to figure out which one offers the attributes that will be most valuable to your lab. Here is a look at some of the things to be looking for while you shop.
Stainless Steel Interior
Stainless steel is common inside of upright nitrogen freezers because it is resilient to the cold. However, there are also other interior materials used by different manufacturers for different reasons. Make sure when you shop for one of these freezers, you examine what material the interior is made out of. Stainless steel is the best because not only does it stand up well to the cold and prolonged use, it is super simple to clean and sanitize without a lot of effort.
Integrated LED Lights
Many lower quality upright liquid nitrogen freezers will not have any lights inside of the unit at all, which can be problematic when you are retrieving stored items, cleaning the unit, or placing items inside the unit. LED lights are capable of functioning even in the drastically cold temperatures, so some of the latest upright models have been designed with multiple LED lights inside. Make sure you look for this feature while looking for a unit to bring into your laboratory; you will be really glad you did later even if you have to pay a bit more for the unit.
Exterior Digital Display
When you are storing things like biological materials, the slightest fluctuations in temperature can completely ruin your stored items. Therefore, your upright nitrogen freezer will have to be continually monitored to ensure it is at the proper temperature. To make temperature monitoring more efficient and easy, the best models have an integrated digital display on the outside, usually on the door, that shows the temperature, settings, and vacuum pressure within the unit. Some models will have a control panel along with the digital display where you can adjust temperature settings and other settings as well. As expected, this is an important feature to have.