The Victor 6234P tachometer is a professional and practical motor speed meter to measure the revolutions per minute (RPM) with a wide measuring range and high resolution. It's featured with high accuracy measurement, quick measuring time and long detecting distance up to 500mm . This tachometer is very easy to use by applying a reflective tape (included 3 in the package) on the target object, then aim at the mark by LED beam. This tachometer (anemometer) has wide range of applications, such as measuring rotating speed of machine, motors, wheels, lathe for metal or wood cutting work, electrical fan, paper making, plastic industry, chemical fiber,washing machines, car making etc.