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[[File:HypoxicTimerInUse.jpg|right|thumb|500px|The HypoxicTimer software in use at Peak 7.]]This windows software is designed to interface with a [[Pulse Oximeter]] to help with [[Intermittent Hypoxic Exposure]], a type of [[Altitude Training]]. The software will provide timers for when to start and stop the hypoxia, as well as recording the blood oxygen saturation (SpO<sub>2</sub>) and heart rate [[Heart Rate]] from the [[Pulse Oximeter]]. It will calculate the [http://en.wikipedia.org/wiki/Hypoxic_Training_Index Hypoxic Training Index] or HTi.
=Using the hypoxic timer=
This software is relatively easy to use;
# Download the software from [http://dl.dropboxfellrnr.com/u/62211312/HypoxicTimer.exe http://dl.dropbox.com/u/62211312Utilities/HypoxicTimer.exe]
# There is no installation, you just run the executable.
# Install software that comes with the CMS-60C or the CMS-50E supported [[Pulse Oximeter]](see below). Verify that the software works and can interface with the [[Pulse Oximeter]] correctly.
# Start the hypoxic timer software.
# Click on the options button to set your preferences. The software will remember your preferences, so you only need to do this once. The preferences that affect the overall length of time will not update the graphs on the main page until the next restart.
# Make sure the [[Pulse Oximeter]] is connected to the computer and is reading your heart rate [[Heart Rate]] and [[SpO2|SpO<sub>2</sub> ]] correctly.# Click the button marked "use pulse oximeter[[Pulse Oximeter]]". You should see your heart rate [[Heart Rate]] and [[SpO2 |SpO<sub>2</sub>]] displayed on the main page[[Main Page]].
# Click the start button. The software will remind you when it is time to start and stop the hypoxia.
[[File:HypoxicTimer.jpg|none|thumb|500px| A screenshot of the hypoxic timer.]]
=Supported Pulse Oximeters=
This software works with my CMS-60C and the CMS-50E [[Pulse Oximeter]]. These devices do not have any published interface, so I had to reverse engineer a workable approach. I don't know if this software will work with any other device, or even if very different versions of the CMS-60C/CMS-50E that might have a different interface that is incompatible with this software. I'm told that the the CMS-50D+ also works with this software which may be a cheaper option.
=License and support=
This software is freely available, but my ability to support it is somewhat limited if you have issues interfacing to your [[Pulse Oximeter]]. If you have any issues with the software please contact me [[Contact Me]] and I will do my best to help you out.