I have a remotely mounted O2 tank that needs monitoring. I have an approved tank pressure sensor with a 0-5 v output that I'd like to hook up to the EMS. Since this kind of sensor isn't mentioned in the manual I just wanted to be sure there was nothing special about connecting it to one of the open unused pins in the EMS. Would there be a preferred group of inputs that would be desirable to use? Also, there is another brand of sensor with a 4 - 20 mA profile. Which would be preferable?