Yonker Fingertips Pulse Oximeter (YK-81C)

The Yonker Fingertips Pulse Oximeter (YK-81C) is a compact, easy-to-use device designed to quickly check your blood oxygen levels and pulse rate at home or on-the-go. Just clip it onto your fingertip and it gives fast, accurate results within seconds — no medical background needed! Ideal for both daily health monitoring and professional use, it’s super light, portable, and built with user comfort in mind. With its vibrant display and intelligent power-saving design, this device is perfect for families, athletes, elderly users, or healthcare providers looking for reliable readings anytime, anywhere.

The YK-81C works by using a non-invasive light sensor to detect oxygen saturation and pulse rate through your fingertip. When you place your finger inside the padded clip, the oximeter emits light waves that pass through the blood in your finger, then calculates SpO2 and pulse rate based on how much light is absorbed. The result? Real-time, precise readings displayed instantly on the screen.

1. Insert 2 AAA batteries and turn on the device
2. Place your finger fully into the opening of the oximeter
3. Press the power button once to start
4. Wait a few seconds while the device reads your oxygen and pulse levels
5. View your results on the screen
6. Remove finger and allow the device to shut off automatically

• Minor discomfort if used for a prolonged period on one finger
• Possible inaccurate readings if hands are too cold, wet or moving
• Temporary skin marks from pressure (rare)