Any way to test yourself at home?

Hi all:

I was wondering if there is any way to "screen" myself for apnea at home. Perhaps using a blood oximeter (attached to finger) with an alarm attached or something? Or maybe some sort of breathing monitor belt attached to some sort of recording device or alarm? How about a microphone and sound recorder to listen to breathing?

I'm fairly good with building /adapting electronic devices..

Thanks,
-m Tweet