dear all we are using Safe-T Vue 10 on all our PRBC, but we noticed that, when we releasef the blood to the ward inside appropiate porter, when it reach there the indicator will turned to red color. we follow exactly the procedure from manufacturer but still we are getting red indicator during handellig these unit to the ward, i think because of the summer time and hot weather ?? maybe May i know your experiance, what is the causes of this problem and how it can be solve? by the way , we are keeping the porter inside the cold room in term to control the temperature especially in the summer time and of course we transport the PRBC with appropriate cooler numbers. thanks