Instructions for use

1. Enclose the Freeze-tag with the products that should be monitored.
2. Before reading, the Freeze-tag shall be placed in an environment above freezing temperature for at least 2 minutes.
3. Observe the Freeze-tag and note which sign is shown on the display:

OK display		Your product has not been exposed for more than 60 minutes to temperatures below -0.5 °C.
ALARM display		Your product has been exposed for more than 60 minutes to temperatures below -0.5 °C. The ALARM sign is irreversible!

If the display remains blank, expose the Freeze-tag again at room temperature and wait at least 2 minutes. If the display is still blank, please check the expiry date (see this chapter).