tahometru i

-contact-free (optical) measurement with reflective tape, distance 350mm, rev speed in both directions-mechanical measuring with detachable contact points, rev speed, surface speed and length measurements in both directions-response time 0.5 sec.-abs housing2100 101 :digital hand tachometers opticaldelivered in a box incl. reflective tapes and batteriefunctions:- memory min, max, av- auto off