Series RS 1500-120 fractional-turn contactless rotary position sensors measure angular displacement of rotating elements such as quarter-turn ball and butterfly valves, air flow dampers, and diverter gates used in packaging and postal sorting machinery. Shafts can rotate 360 deg but RS 1500-120 use contactless inductive technology to measure shaft angle position over nominal 120 deg range with excellent accuracy and repeatability. Units exhibit linearity error of less than 0.10% of full range output, have IEC IP 66 environmental rating, and operate at temperatures from 0 to 185ºF. RSE 1500-120 has 24 Vdc input and 0 to 10 Vdc output; RSI 1500-120 has 2-wire 4-20 mA loop-powered transmitter I/O.