Cumming, Ga.— The Centsable line has over 60 proximity switch models including dc inductive from 8 to 30 mm diameters and ac ones in 12 or 18 mm. All dc sensors are available in either fixed cable or quick disconnect, NPN or PNP outputs, and shielded or unshielded. All proximity sensors carry a lifetime warranty when the purchased product is properly registered with the company. Photoelectric sensors are available in 18 mm and rectangular. They are available in diffuse, polarized retroreflective, and through-beam styles. Cylindrical sensors are also available in fiber-optic. All are available in standard cable or quick disconnect. Automationdirect.com