The optical design of the OFV-503 and OFV-505 heads offers excellent performance and exceptional optical sensitivity. The OFV-505 features autofocus and focus memory. Coupled to the OFV-5000 Vibrometer Controller, the OFV-503/505 sensor heads take full advantage of the high-resolution analog and digital processing of the OFV-5000. The OFV-503 and OFV-505 are at the heart of a range of universal and expandable non-contact vibrometer systems.

• Practical, "point & measure", easy to use
• Low-power, visible, eye-safe (Class 2) laser provides outstanding optical sensitivity (for example, successful measurements from the matte black surface of a loudspeaker cone at >30 m)
• Remote focus control, with Focus Memory function (OFV-505):
• Stepper Motorized focusing can be made either manually at the head or via the OFV-5000 control panel. When using the OFV-505 Sensor Head, the focus positions can be saved and precisely recalled.
• Autofocus: The OFV-505 Sensor Head can auto-sense the return signal quality and automatically set the focus for an optimal signal
• Expandability options: The OFV-505 sensor combined with the OFV-5000 controller can be upgraded to a full PSV-400 Polytec Scanning Vibrometer system