The CH25 incremental rotary encoder from Celesco Transducer Products has a powder- coated enclosure rated for use in IP67 environments. It has a 2 ½-inch square flange and a 3/8-inch diameter shaft.
The encoder will handle input voltages from 5 to 30 VDC and ships with a push-pull output driver and a quadrature signal format. Its available resolution range is 100 to 5,000 pulses per turn. Electrical connections are achieved with a universally accepted M12 connector; an additional shielded 6 ½-foot cord set is also available. The encoder weighs just 10.5 ounces.