Photoelectric sensors feature thin housings The Q14, self-contained, 10- to 30-Vdc photoelectric sensors have a 7.5-mm housing width and are available with either sinking or sourcing outputs. Dual LEDs under a sealed cover indicate power and light sensed. The LEDs also flash to indicate overloaded output and marginal excess gain in the light condition. Banner Engineering, POB 9414, Minneapolis, MN 55440; (612) 544-3164; Fax: (612) 544-3213.