Lutron VT-8204 3in1 Vibration/Tachometer

\n3 in 1\nVIBRATION/TACHOMETER\nModel : VT-8204\n* Separate professional vibration sensor.\n* Vibration meter :\n Acceleration : 200 m/s2, RMS, PEAK, Max. Hold, g, ft/s2.\n Velocity : 200 mm/s, RMS, PEAK, Max. Hold, cm/s, inch/s.\n Displacement ( p-p ) : 2 mm, Max. Hold, cm, inch.\n* Tachometer ( photo ) : 10 to 100,000 RPM.\n Tachometer ( contact ) : 5 to 19,999. RPM\n Tach. ( surface speed ) : m/min., ft/min. inch/min.\n* Laser photo tachometer.\n* 1000 Data logger point.\n* Data hold, record ( Max., Min. )\n* Optional IR probe, IR-962.\n* RS-232/USB computer interface.\n* DC 1.5V ( UM-3, AA ) x 4 PCs.\n* Patented.\n