The Selec RC2106 is a 4 digit Rate/RPM Indicators indicator suitable for PS/RPM/RPH indications in operation of equipment, machinery, systems or processes in a wide range of industrial applications. The controllers accepts input from - Proximity switches, Encoders, Potential free contacts, with input speed from 0 to 3.5 KHZ and 4.00 RPM to 9999 RPM. These RPM indicators are housed in a compact panel mounting enclosure and are powered from 85 to 270V AC/DC. Â Features Auto ranging RPM indicator Scalable input Measures upto 9999 RPM Input speed upto 3.5KHz