AutomationDirect(TM) has added several models to its 18mm photoelectric sensor line. The NPN and PNP diffuse sensors offered feature one normally-open and one normally-closed output and have a sensing range up to 600mm. Also added are through-beam emitter and receivers in up to six-meter sensing ranges. The photoelectric sensors are available in axial and right angle optics, and offer embedded or quick-disconnect cable exits. Prices start at $33; components are available for same-day shipping. See the full line of photoelectric sensors at www.automationdirect.com/photoelectric.