The Teflon cover seals against gases and vapors that would destroy standard models. Sensing range of the QT50U is 200 mm to 8 m, while the T30U senses from 300 mm to 1.5 m. Both models feature 10 to 30-Vdc operation and incorporate analog and discrete outputs along with IP67 and NEMA-6P ratings. The QT50U includes an electromechanical relay output.

Banner Engineering Corp., 9714 Tenth Ave. N, Minneapolis, MN 55441, (800) 809-7043,