Hello;
As the frequency of that pulse is 333KHz, you need a DAQ board that can support that speed.
Also, since you don't need to characterize the pulse shape, the DAQ board that can go up to 500KHz would be enough for your application; such as the PCI-MIO-16E-4.
To implement that in Labview, you can use one of the DAQ Labview shipping examples, such as the Continuouos Acquisition and Chart (buffered).vi.
Hope this helps.
Filipe