CycleOps Fluid2

is there anyway to attach a powermeter to the cycleops fluid2 trainer instead of having to buy a new trainer?

at interbike I saw this gizmo that measured your wheel speed and used some formulas to deduce your power from a regular fluid trainer. It was made by another company but worked with cyclops. The name of it escapes me at the moment. It’s by no means as accurate as a real power meter.

Polar power meter will attach. I’ve heard it is not as accurate as others.