This product is being discontinued and will be replaced by ZQ-A series.When you already have one of the lightest and narrowest space saving ejector systems on the market, it´s difficult to see how you can improve it. But, our R&D engineers have once again come up with another great idea. By simply replacing the ejectors existing pressure switch with our ultra thin ZSE 10 digital pressure switch, input setting errors are dramatically reduced and with the units copy function, multiple stations can be easily copied and set from the master unit. Further performance benefits of this new combination are improved multi angled indicator visibility, easier operational handling (by replacing trimmers with buttons) and reduced energy consumption, by up to 20%, thanks to the units power saving function.