What is this device?

[blueface]

A friend of mine sent this picture of a freediver with a device on his right forearm. Anybody know what it is?

 

[azapa]

looks like a medical device measuring blood oxygen saturation..

 

[nostres]

FII Kona Freediving Camp 2010. Project for Barry University, ask any of the participants, Martin Stepanek or Brett Scaglione. I only saw Facebook pictures but there is no detailed description

 

[blueface]

Thanks for all responses.

 

[Simos]

Looks like it's connecting to the tip of the middle finger, so I'm guessing it's at least an oxymeter.... (as others have pointed above) looks a bit big for just an oxymeter so must be collecting more data than that.

I think Will Tr (if i remember correctly) had taken part in some research and it did involve diving with some sort of expensive device/computer strapped on him...

After lots of extensive research scientists concluded that oxygen levels drop when one holds their breath for a long time
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[Dr.Clean]

I think everybody got it. Looks like a pulse-oxymeter

 

[blueface]

I think you are right. Thanks!

 

[Mark Lamont]

I guess a direct injection of Miller light shot through the worlds shortest fattest pneumatic speargun is not in serious contention?

 

[glubglub]

Wow. Underwater pulse oxymeter? Who made those? (or is it home-based waterproofing one commercial oxymeter?)