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Nothing is shown on the display despite pressing the
on/off button.
The measured temperature is above 43.99°C and is therefore
outside the measuring range.
The measured temperature is below 32.00°C and is therefore
outside the measuring range.
The ambient temperature is above 40.00°C and is therefore
outside the permissible operating conditions.
The ambient temperature is below 10.00°C and is therefore
outside the permissible operating conditions.
No display after switching on. Check whether the battery is
positioned correctly and the polarity (+/-) is correct. If the
error persists, change the battery.
Device memory is full. Connect the thermom-
eter to the Natural Cycles app to transfer the
measured values to the app.
Battery flat. Please change the battery.
Battery low. Have a spare battery ready.
Fever warning. Temperature higher than 37.5°C measured.
Unlock the battery cover by turning
it past the marker to the left. Then
lift the cover off.
Remove the old battery and insert
a new battery (CR2032) with the “+”
symbol facing up.
Place the cover back on the battery
compartment and lock it in place.
After changing the battery, the
thermometer must be connected to
the Natural Cycles app so that the date and time can be resynchronised. To
do this, open the Natural Cycles app and turn on the thermometer. Until
you have done this, you cannot take any new temperature measurements.
Measurement values stored on the device are retained when the battery
is changed.
Each NC° Thermometer (Gen 2) has a unique signature assigned to a spe-
cific user. Signatures are assigned during initial setup when the device is
synchronised with the Natural Cycles app for the first time.
If your device is lost or faulty, you can assign a new NC° Thermometer
(Gen 2) to your user account.
To do this, go to the Top Menu in the Natural Cycles app and follow the
instructions.
Please note: If you change device during a cycle, the current cycle becomes
inactive in the Natural Cycles app. For your safety, the app only accepts
measurement data from a single device during a cycle.
Change the battery if:
After switching on the device, the “battery flat” indica
-
tor (Figure 2) appears on the display. You must insert
a new battery before you can take any temperature
measurements.
Figure 2
Battery com-
partment cover
unlocked
Battery com-
partment cover
locked
CHANGING DEVICES
ERROR MESSAGES
The device is equipped with a CR2032 lithium battery.
If the battery icon flashes on the display while the
thermometer is in use, the battery is low (Figure 1). You
can still perform some temperature measurements at
this point, but you should have a spare battery ready.
BATTERY DISPLAY/CHANGING THE BATTERY
Figure 1
Bluetooth connection error
