Bluetooth pulse oximeter
Download the pulse oximeter instructions in your preferred language. The manual supplied with the device and the markings on your unit take precedence.
Find the pulse oximeter and AOJ-20F thermometer manuals. The practical pulse oximeter guide follows below.
Download the manual for your device. Also refer to the manual supplied with your unit and its markings.
Download the pulse oximeter instructions in your preferred language. The manual supplied with the device and the markings on your unit take precedence.
Manuals for the AOJ-20F model only: forehead and ear readings and adjusted/direct mode. Bath, bottle and Bluetooth functions are not documented. Check the model printed on your device.
Fit two AAA batteries following the + and − symbols.
Insert a clean, dry finger and keep still.
Wait for the figures on the display to stabilise.

Install AiLink on a compatible phone, enable Bluetooth and follow the app instructions to add your pulse oximeter. You can read measurements on the device without connecting it.
This device is intended for individual readings. A single number cannot establish a diagnosis. If you have symptoms, concerns or an unexpected result, consult a healthcare professional.