ThermoWorks WAND THD2FE Operating Instructions Manual Download Page 3

Forehead 

Temperature

This instrument has been designed for personal use. It is not meant to 
replace a visit to the doctor. Please compare the measurement result to 
your regular body temperature. Consult with your doctor if you have health 
concerns.

Surface 

Temperature

Surface mode shows the actual and unadjusted surface temperature, which 
is different from the body temperature. To access surface mode, press and 
hold        while pressing ‘Start’ once. You will see the        on the display. 
Press and hold ‘Start’ for continuous surface measurements.

High Temp 

Alert

If the thermometer detects a temperature of 

99.5°F (37.5°C) using 

forehead mode, you will hear three short beeps followed by one long beep.

Memory 

Locations

You can store 25 of the most recent temperature readings. To access these, 
start with the instrument turned on and press        once. The saved reading 
will display indicated by the        icon. Press        again to advance through 
saved readings

Switch °F/°C

Start with the instrument turned off. Press and hold ‘Start’ for approximately 
3 seconds while pressing the (power icon) once. The icon will switch from 
°F to °C. Complete the process again to switch back to °F.

Please Note

All stored memory readings will be deleted when switching 

between units.

Mute

The default setting is for sound on. To turn the sound off, press and hold 
the        button for 3 seconds. The      icon will flash on the display and the 
instrument is muted. Complete the process again to turn the sound on and 
unmute the instrument.

Functions 

Battery Replacement

Troubleshooting

Intended Operator - At least 11 years old (5 years intensive reading experience), no maximum.

Er1 is displayed when the measurement was taken before the instrument had stabilized. Er3 is 
displayed when the ambient temperature is not between 50 to 104°F (10 to 40°C). The instrument 
should always be allowed plenty of time (minimum of 15 minutes) to stabilize to the ambient 
temperature.

Error 5-9 is displayed for all other error messages; it is necessary to reset the thermometer. To reset 
the thermometer, turn it off and remove the batteries for at least one minute. Reinsert the batteries 
and turn on. If the error message remains, please contact Technical Support at techsupport@
thermoworks.com for further assistance.

‘Hi’ or ‘Lo’ is displayed when the temperature being measured is outside of the measurement range. 
In forehead mode this is lower than 93.2°F (34°C) or higher than 108°F (42.°C). In surface mode 
this is lower than –7.6°F (–22°C) or higher than 176°F (80°C).

Instrument cannot be powered on. Please try a new battery.

Replace batteries

When the “Low Battery” icon flashes, the batteries should be replaced immediately with 2x AAA, 1.5 volt batteries. To 
open the battery cover, use your thumbs to press down and slide the battery cover off. Remove and properly dispose the 
used batteries promptly, keeping away from children. Insert the new batteries according to the correct polarity. Replace 
the battery cover.

Fever alarm

Surface temperature

Forehead temperature

Mute mode

Memory locations

Fever alarm

Surface temperature

Forehead temperature

Mute mode

Memory locations

Fever alarm

Surface temperature

Forehead temperature

Mute mode

Memory locations

Fever alarm

Surface temperature

Forehead temperature

Mute mode

Memory locations

Fever alarm

Surface temperature

Forehead temperature

Mute mode

Memory locations

Fever alarm

Surface temperature

Forehead temperature

Mute mode

Memory locations

Fever alarm

Surface temperature

Forehead temperature

Mute mode

Memory locations

Fever alarm

Surface temperature

Forehead temperature

Mute mode

Memory locations

Fever alarm

Surface temperature

Forehead temperature

Mute mode

Memory locations

Fever alarm

Surface temperature

Forehead temperature

Mute mode

Memory locations

Fever alarm

Surface temperature

Forehead temperature

Mute mode

Memory locations

Fever alarm

Surface temperature

Forehead temperature

Mute mode

Memory locations

Fever alarm

Surface temperature

Forehead temperature

Mute mode

Memory locations

Fever alarm

Surface temperature

Forehead temperature

Mute mode

Memory locations

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