Symbol
Key
Degrees of temperature
Temperature is being scanned
Smiling face indicating temperature lower than 100.4°F (38°C)
Frowning face indicating tempera- ture of 100.4°F (38°C) or higher
Fahrenheit
Celsius
Low battery warning
Replace battery
Memory symbol
Temperature is below 93.2°F (34°C)
Temperature is above 109.4°F (43°C)
Ambient temperature is outside thermometer’s range
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