Preparation

• Wait at least 30 minutes after bathing, feeding or physical activity before measuring.
• Ensure the underarm area is clean and completely dry (sweat may affect readings).
• Remove bulky clothing from the measurement area.
• Measure in a stable, draft-free environment — avoid direct sunlight and air conditioning or fan airflow directed at the person.
• If the person or the device has come from a very cold or hot place, allow both to stabilise at room temperature for several minutes.
• Keep mobile phones and other devices that emit electromagnetic fields at least 30 cm away from the thermometer during the measurement.

Steps:

1. Open the Baby FM app and confirm the thermometer is connected.
2. Position the thermometer in the strap so the sensor passes through the opening and is secured in the small fastening loop, then place the strap so the sensor sits firmly under the armpit, against bare skin.
3. Lower the arm and press it snugly against the torso.
4. Minimise movement during the reading.
5. Watch the live temperature in the app. It takes about 2 minutes to get a steady readout.
6. Once the reading plateaus (the value stops rising), that stable value is your temperature result.
7. The measurement is automatically saved to your history.

Tips for best results

• Keep the arm firmly closed throughout the measurement.
• Use the same armpit each time for consistent results.
• For babies or children, gently hold the arm in place, or measure while the child is calm or asleep.
• If you reposition the device, allow it to settle again before reading the value.
• Confirm the correct profile is selected in the app before you record or act on the reading.