Relay tachometer:

• Installing the Electro 11 pin plug-in series of control and timing devices is simple and straightforward since they are designed to fit into a conventional 11 pin base.
• Multifunction tachometer relay with four configurable speeds that is microprocessor based.
• The device interfaces directly with a Namur two wire proximity sensor or limit switch and has the option to operate at OVER or UNDER speeds.