The CELESCO RT9420-0R50-241-1230 is an industrial-grade rotary position encoder with a 0.50-turn stroke range and a 4...20 mA output signal. It features a plastic-hybrid potentiometer for excellent linearity and virtually infinite resolution. The device is housed in powder-coated aluminum or stainless steel, designed to withstand harsh environments. It meets NEMA 4/4X/6 and IP67/IP68 standards. Zero and span adjustments are accessible through housing ports.