Fingertip Oximeter

Revolutionize your freediving training with this small easy-to-use finger-tip pulse oximeter with OLED display!

Four Ways to Use the Oximeter to Improve Your Training:

1. Dry Aerobic or Interval Training

Wearing the oximeter during dry athletic training allows you to measure your blood oxygen saturation during the workout.

This allows you to adjust the intensity of your workout to reach a target level of hypoxia.

It also allows you to measure your body’s adaptation. As you adapt to the training, you should be able to perform the same intensity workout with LESS oxygen desaturation (i.e. higher blood oxygen levels).

Using this feedback mechanism, you can tweak your training to your own personal physiology, without blindly following some generic program.

2. Static Apnea Training

The oximeter is incredibly useful, almost essential, for static breath-hold training. Using the oximeter during a dry breath-hold allows you to do the following:

  • Predict your maximum possible breath-hold length, without actually holding your breath for very long (for example, hold your breath for 1-3 minutes, and use the oxygen level to predict that a blackout would happen at 7 minutes)
  • Measure your breath-holding capacity with only a short breath-hold test. As you improve, you will reach higher and higher oxygen saturations after the same length of breath-hold.
  • For high-level elite competitive freedivers, you can measure the lowest possible oxygen level that you can withstand without having a hypoxic seizure (samba). This critical oxygen level will keep decreasing as your tolerance to hypoxia improves.
  • Tailor O2 static tables for your physiology, to avoid excessive hypoxia, and to avoid insufficient hypoxia. In short, the O2 table can be optimized for maximum results without overtraining.
  • Using an oximeter allows you to perform the ’IHT’ or interval hypoxic training method developed by elite freediver Eric Fattah. This incredibly effective exercise can only be done with an oximeter.

3. Active Apnea Training

You can use the oximeter while doing apnea walks, apnea biking in the gym, apnea stairmaster, apnea hiking, or other moving apnea exercises.

Again, it allows you to view the level of hypoxia you are reaching on each set, and adjust the intensity of the exercise and monitor your progress, for optimum results.

4. Lung Squeeze

If you are doing deep breath-hold diving in the ocean, and you think you may have suffered a lung squeeze (pulmonary barotrauma), a clear sign of this problem is decreased resting blood oxygen saturation. A quick dry test with an oximeter can help you diagnose your condition.

NOTE: Always consult a trained physician in the case of suspected injury; but you can report your oxygen saturation level to a physician using the oximeter, to aid him or her in diagnosis.

Technical Specifications

Oximeter Functionality

  • Dual Color OLED display
  • Displays SpO2, PR, pulse bar and waveform
  • Six display modes
  • Low power consumption
  • Battery-low indicator
  • Adjustable brightness
  • Automatic power off
  • Runs on two AAA batteries
  • Suitable for children and adults

Hardware Specs

  • SpO2 measurement range: 15% - 99%
  • SpO2 resolution: 1%
  • SpO2 accuracy: 80% - 99%: ±2%, 70% - 79%: ±3%, <70%: unspecified
  • Pulse rate measurement range: 30-235bpm
  • Pulse rate resolution: 1bpm
  • Pulse rate accuracy: 30-99bpm: ±2bpm, 100-235bpm: ±2%
  • Display: dual color OLED
  • 10 adjustable brightness levels
  • 6 display modes
  • Estimated battery life on two AAA 1.5v, 600mAh batteries: 30h
  • Battery-low indicator alarm
  • Dimensions (LWH): 5.8cm, 3.2cm, 3.4cm / 2.3”, 1.2”, 1.3”
  • Weight: 57g /2 ounces (incl. batteries)
  • Operation temperature: 5ºC – 40ºC (41 F – 104 F)
  • Operation humidity: ≤80%, no condensation
  • Storage humidity: ≤93%, no condensation

Includes: strap and 2 AAA batteries

Click here to download the Oximeter manual (PDF)

Fingertip Pulse Oximeter

  • The fingertip pulse oximeter retails for
    $99 CAD
  • Availability: IN STOCK

Oximeter only for $99

Freediving Kit for $699
(Noseclip, Fluid Goggles, Oximeter, and Spirometer.)