Empatica EmbracePlus Instructions For Use Manual page 53

Not recording - Critical Temperature
When the EmbracePlus reaches an unusually high temperature (60°C), a
'T' symbol will appear on the display. To prevent battery and hardware
damage, the EmbracePlus will automatically be put in hibernation mode.
Make sure that the environmental conditions are within the operational
range (0 - 50°C) of the EmbracePlus. Then, press the OK (upper) button
and the EmbracePlus will reboot and wake up from hibernation,
indicated by the 'HI' message.
In case the critical temperature is detected again after waking up,
EmbracePlus will re-enter the critical temperature state and
automatically go into hibernation.
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