Position feedback is used for open/close feedback from mechanical to proximity switches (npn, pnp, 2-wire and 3-wire).Light or magnetic switches can be used as position feedback. Lasers or radar can be used for analogue positionfeedback. Potentiometers can also be used for position feedback.There is a variety of instruments on the market for position feedback. We use it for valves, gates and generator throttle positions. Contact us for more information and a quotation on your needs. If you need assistance we will come and visit you at your site.