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Taking a measurement with Pulseoximeter

Updated onSeptember 13, 2026

Pulseoximeter measures blood oxygen saturation (SpO₂) and pulse. To see the readings in Aidlab, first connect the device to the app.

Before you start, check the battery level and sit comfortably. Your finger should be warm, clean, and dry.

1. Fasten Pulseoximeter on your wrist

Place the device on your wrist like a watch and fasten the strap.

Fastening the Pulseoximeter strap around the wrist.

2. Put the sensor on your finger

Connect the sensor to the device and place it on your finger as shown below. Press the power button to switch on Pulseoximeter.

Pulseoximeter sensor fitted over a finger, with its cable running along the hand.

3. Check the readings

Keep your hand still and wait for the SpO₂ and pulse values on the display to stabilize. In Aidlab, open Devices and select Pulseoximeter to check the live values.

If the reading is unstable

Check your finger position and relax your hand. Nail polish or an artificial nail may affect the reading. Remove it and repeat the measurement according to the device instructions.

If the result concerns you or symptoms persist, contact a medical professional.

No readings in the app? See troubleshooting.

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