Ear mode: +/-0.2°C (0.4°F)
during 35.5~42°C (95.9~107.6°F),
+/-0.3°C (0.5°F) for other range.
Forehead mode: +/-0.2°C (0.4°F)
during 36~39°C (96.8~102°F),
+/-0.3°C (0.5°F) for other range.
For scan mode: +/-0.3°C (0.5°F)
during 22~42.2°C (-7.6~108°F),
others +/-4% or +/-2°C (4°F) whichever is greater