Rotaro T Digital Hand-Tachometer with Special Adapter

Rotaro T digital hand-tachometer is a device for measuring rotational speed and velocity, also length. The compact device has 2 measuring methods. One is optical, and therefore non-contacting; the other is mechanical using an adapter and various probes. Using a special adapter, the rotaro T can measure the lengths and velocities of yarn, wire and glass or other fibre.