The Wattstopper PW-311-R is a 0-10V PIR dimming wall switch occupancy sensor rated for 120/277V operation, combining automatic occupancy-based switching with manual dim-up/dim-down control for 0-10V compatible luminaires. Designed for offices, classrooms, and commercial interiors requiring energy code compliance and user override capability. Available in red finish. Note: this product has been discontinued by the manufacturer.