Thanks to all for the info. Sounds like I need to move to the States to be able to try out the new generation vents. I'm not very good at remembering make and model names but I used the sechrists in the UK and waht I think was an SLE but may have been a newer sechrist that had an HF option. I like the fact that you can try a baby on high frequency without having to shift equipment around which is why the SLE probably has the edge over the Drager. I have looked at a couple of other forums and found some not very complimentary comments on the SLE in regards to nursing friendliness, apparently it alarms alot! Hey Ho! We nurses wil get to make a comment but it won't be our decision in the end. Guess I am just trying to be up to speed with whatever we get.
Have just started to use this site and really love the wealth of knowledge and info that is out there on the airwaves.