Incubator thermeter (red/blue liquid type), and its repair

Описание: The normal kind of mercury thermometer is hard to send by courier, because mercury is not allowed to go by air plane.
This kind of red liquid and blue liquid type thermometer is a perfect replacement for the mercury type. Same design, and easy to read.
However during storage and transportation, the reading may beak in between.
This video is teaching how to correct them, in a simple way.