Well here is something for all you console divers to think about....
The spool between the hose and the Brass and glass pressure gauge has 2 O-rings and their use is dynamic to allow the gauge or console to spin so you can position it to be at an angle for easy reading so in effect that is 2 O-rings over the single one to attach a transmitter to a first stage.
I agree with tstormdiver IMHO Oceanic computers are more reliable and with the dual algorithm can be matched with a Suunto or set more or less conservative depending on the algorithm and conservative setting.
Also what people may need to realize is communications between the computer and transmitter are not required to be 100% stable to be perfectly functional.