Two-frequency Planar Doppler Velocimetry is a modified planar Doppler velocimetry (PDV) technique that uses sequential illumination of the flow using two illumination frequencies with the flow viewed through an iodine cell. The first illumination frequency is tuned to coincide with an iodine absorption line (typically at around 50% transmission) and the second is tuned to a full transmission frequency. An image captured under the first illumination frequency will have intensities related to the Doppler shift of the light scattered from particles seeded in the flow and provides a signal image. A second image captured with the second illumination frequency is insensitive to Doppler shifts and provides a reference image. This allows Doppler velocimetry measurements of the flow to be made using a single CCD camera and avoiding image misalignment issues associated with PDV. The 2 ν-PDV technique has been previously demonstrated making time-averaged velocity measurements using a CW argon ion laser. This paper describes the extension of this work to allow instantaneous velocity measurements to be made using the 2 ν-PDV technique. A pulsed 2 ν-PDV system is described which uses two independently seeded Nd:YAG lasers to illuminate the flow with the two frequencies of light required. A CCD camera capable of capture two closely spaced images (~300ns) is used to capture the signal and references images sequentially. As the time separation between the images is small the motion of the seed particles in the flow is effectively frozen. Preliminary results on the velocity field of a rotating disc and a seeded air jet are presented.