The FreezeSafe™ temperature indicator provides accurate evidence that a product has experienced unacceptably low temperatures. Easy to use, FreezeSafe turns from white to magenta when the temperature falls below its threshold. This cost-effective solution allows you to add an indicator to every shipment or to mount it directly onto the product itself.  A simple visual check alerts the recipient that the temperature has been unacceptably cold.


  • 0°C and 2°C temperature threshold.
  • Each indicator is serialized with lot traceability


  • Easy to read- Distinct color change when temperature has fallen below threshold temperature. Provides evidence if the cold chain has been maintained.
  • Easy to use – Product arrives ready to use. No pre-activation required.
  • Easy to implement – Cost effective solution that enables simple accept / reject decisions to be made.


  • Temperature Threshold - 0°C / 32°F 2°C / 36°F
  • Time Delay - Within 90 minutes (2°C) Within 30 minutes (0°C)
  • Accuracy - ±1°C / ±2°F
  • Size - 21 x 21 mm
  • Visual Indication - Clear to Magenta
  • Storage Requirements - Store unused products away from direct light between 15°C and 25°C / 59°F and 77°F
  • Shelf Life - 1 year