Easy-Laser E285 vibrometer probe for measuring and recording vibration level in mm/s or inch/s. It also records bearing condition in g’s. The Easy-Laser E285 vibrometer requires the use of the E51 or E52 display unit from the Easy Laser E540 or E710 Laser shaft alignment tool to take readings and record data. Vibration measurements are checked and documented against the ISO 10816 standard. Includes sensor, magnet, needle tip and case. The sensor connects to the display unit using the standard red sensor cable that is used with your alignment sensors.