Extech 461830-NIST StroboTach Digital Stroboscope and Tachometer

Extech 461830-NIST StroboTach Digital Stroboscope and Tachometer can freeze readings, without contact, from rotating objects so they can be analyzed. RPMs are displayed on a 4 digit LED screen. It examines motion and speed by simply targeting and synchronizing its flash rate (fpm) with a rotating object. The StroboTach provides high accuracy over a wide, dynamic range via exclusive microcomputer LSI circuits and crystal control time-bases.