Ann: Open Briefing, page-15

Salubrious . There are some good videos from Bluechiip on their web site which explain the technology including their advantages and disadvantages of traditional techniques. 

Extreme temperatures cause frost and peeling which then make visual tags difficult to read and unreliable.

A system fully engaged with Bluechiip technology allows multiple samples to be checked at a time as well as individual sample temperatures. 

A great general solution but also particularly relevant for high value samples such as IVF.