Controlling motor speed is essential for many production assembly machines or robotic equipment. For tachometer feedback, or motor speed control applications, the Model 225 is the ideal encoder choice. The Model 225 is a thru-bore encoder available in both single channel (225A) and quadrature (225Q) models. The Model 225 provides a cost effective solution for simple measurement. Features including an all-metal housing, a variety of connector options, and easy installation due to the thru-bore design, make the Model 225 ideal for many motion control and manufacturing applications.