First of all, I already own the Venue Active Stylus Pen (Dell 750-AAHC). Is this one compatible with the P2418HT Touch monitor? And if not, what is the pen to go?
Usage of a pen was not tested by Dell for the P2418HT.
The sales page does not mention a pen or list one under Accessories.
The User's Guide does not mention a pen.
It states on page 11 =Touch type = Projected Capacitive SystemTouch method = Fingers
It states on page 52, Touchscreen Problems ="Cursor does not accurately follow your finger when you touch the screen"
In theory, you would need a passive capacitive pen so the active Venue pen would not work.