ColdMark Kälteindikator – Temperaturindikator zur Frostüberwachung und Kälteüberwachung

This one-time use cold indicator changes color from clear to violet to show that a critical cold event has occurred, disrupting the cold chain. Available in various temperature thresholds.

• The description claims that the indicator shows a clear to violet color change upon temperature drop below a defined threshold.
• The description claims a reaction time of typically 30 minutes when the threshold is undershot.