PD-400 Digital PD Meter Spud This is a replacement case

This is a replacement case for Reichert's Tono-pen Avia and does not include the tonopen or any other accessories

The 558 comes standard with a specially designed floor lock to prevent chair movement during surgical procedures

For use with Reichert LongLife Projector and Excel 200 slit lamp

For use with Haag Streit models:

PD-400 Digital PD Meter Spud This is a replacement caseThe PD 400 digital PD meter features a high definition camera that significantly reduces visual errors typically caused by monocular observation by the optometrist. It allows simultaneous adjustment of both eyes' pupillary distance (PD), enhancing measurement efficiency. For energy conservation, the device automatically enters sleep mode after 30 seconds of inactivity and powers off completely after 4 minutes without operation. Redefine the way of