Of course EK280 is a high end new product with more features and powerful functions.
But whether customer would like to take it, depends on their budget, their system requirement and many other considerations. You can talk to them and try to persuade them.
Maybe they think 2 decimal points are good enough to them and they want to continue to use existing unit.
If they really insist to upgrade the old device, we’ll have to do it. Would you agree?