GE Truvitals TM4000 User Manual page 9

5. To power off the thermometer,
press and hold the measure
button for five (5) seconds
while the device is in
standby mode or wait
15 seconds for the auto
shutoff feature to power
off the thermometer.
NOTES: Environment changes can affect the accuracy of
temperature readings. Before use, allow the thermometer
to remain in one location without significant air temperature
changes for 30 minutes.
Wait at least 30 minutes after strenuous exercise before taking
a temperature reading.
Do not wear a hat and make sure there is no hair, sweat, or
makeup on your forehead while taking temperature readings.
To avoid human error, take multiple measurements and use the
average temperature.
Fever Alerts
If a temperature reading is above the normal range, the
thermometer will give you a fever alert. The table below
outlines how the thermometer indicates fever alerts.
One Short Beep
Green Backlight
Less than
99.5 °F (37.5 °C)
User Guide | Operation Instructions
Truvitals Smart Non-Touch 2-in-1 Thermometer with Bluetooth
Two Short Beeps
Yellow Backlight
99.5 °F - 101.3 °F
(37.5 °C - 38.5 °C)
Three Short Beeps
Red Backlight
Greater than
101.3 °F (38.5 °C)
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