ianr33
Contributor
I guess it depends on how much you need the instrumented air consumption data. If you have to have it then that pretty much narrows down you solutions (and none are simple and inexpensive). I find I don't really pay that much attention to measuring my SAC any more since I settled down to a fairly predicable value with known dependence on dive conditions. Now I just enjoy a good recreational dive and don't worry about constant recording and playback of dive profile and gas usage data.
Totally agree with that.
I have a Sensus Pro data Logger. If I can bother to note starting and ending gas pressure its easy to calculate SAC. Used to do it but rarely bother nowadays. I have a pretty good feel for how much gas a particular dive will use,thats close enough for me.