R15ml And 50ml Tube Test Rack Higher Than Normal Tube Holder,Used in -22℃~0℃ Cooler Benchtop without Real-Time show

There are many different tube test racks that can choose to suit for the Ice-free cooler or Holder home

There is temperature display in some tube test racks, and it will show the real-time temperature when you are doing an experiment in 0℃~4℃ cooling core and will last 12 hours or more. but if need low temperature to shown you will be disappoint, because the real-time temperature dispaly lable will lose his role.

Before you do an experiment, please wait for some minutes if you worry the temperature is not very good. In ultra-low temperature cooler, the real-time display will lose his magic, so you can not know the real-time temperature.