testo 465 rpm measuring instrument set: Measuring instrument with SoftCase (protective case) in transport case (plastic), incl. reflectors, batteries and calibration protocol Using testo 465, rpm can be easily measured without contact. Simply attach a reflector to the object to be measured and then point the visible, red light beam at the reflector and measure. Highly affordable Easy one-hand operation Storage of mean/max/min value, last reading Robust design on account of SoftCase (protective case) Measurement distance up to 600 mm