A blue dye housed in a blister is held adjacent to a micro-porous membrane. Upon squeezing the activation button the dye comes out of the blister and into contact with the membrane. The temperature of the chilled blood bag solidifies the liquid, and thus unable to move through the membrane. If the temperature rises to or above the threshold temperature of 10ºC/50ºF, the dye changes to liquid form, moves through the membrane and indicates a breach when blue dye shows up in the indication window.
Timestrip indicator labels are single use, low cost, patented technology diffusing liquid through a viewing window to reveal how much time has passed since activation or temperature breach
eTimestrip App for pdf reporting
Download our eTimestrip app today. It is compatible with most of our electronic indicators and can be used to generate data report PDF and CSVs to save and share.