The PX-D7 is a 60 GHz detector designed for 400–900 nm measurement applications where an instrument-style product is desirable. The PX-D7 provides a peak responsivity of 0.03 A/W at 850 nm with an ultrafast impulse response of 7 ps. The internal Clean-pulseTM design assures low group-delay response necessary for time-domain, digital applications. This instrument provides a high performance MSM detector in a hand-held, rugged, black-anodized case. The case contains the detector module, power conditioning circuitry, photocurrent monitor, 50µm multimode fiber optic input port, and Anritsu V output connector in addition to a power switch and indicator light. Designed with R&D applications in mind, it can be attached to virtually any diagnostic instrument to provide optical capability.