Freeze-Tag

The device indicates via a visual alarm when an exposure to temperatures below -0.5°C for longer than 60 minutes has occurred. 
The Freeze-tag is an electronic Irreversible Freeze Indicator (IFI) with an internal sensor, factory-programmed alarm and visual display for indicating a freeze event during transport or storage of freeze-sensitive vaccines. 
The device is shipped activated from the manufacturer and once an alarm has been triggered, cannot be re-used.

Hardware specifications:
Operating temperature: -20°C to +55°C
Resolution: 0.1°C
Accuracy: +/- 0.3°C within the range -10°C to +10°C.
Battery type: Non-replaceable Lithium coin cell battery
Alarm: Visual, display showing either a tick for “OK” or a cross for “Alarm”
User interface: LCD
Sensor: Internal, non-replaceable sensor
Memory: Not applicable
Data download: Not available
Mounting: Not applicable
Label colour: Green
Unit Dimensions (LxWxD): 4.9 x 3 x 1.1cm
Unit Weight: 12g
Shelf life: 60 months from date of manufacture (includes activated life)
Activated life: 60 months (device shipped activated from manufacturer)
IP rating: IP67.