The Wattstopper PW-301-347-W is a 347V passive infrared (PIR) wall switch occupancy sensor that automatically controls lighting based on detected occupancy, providing both auto-on and auto-off functionality for energy code compliance in commercial spaces. Engineered with high-sensitivity PIR detection, it is well-suited for private offices, restrooms, and utility spaces on 347V circuits common in Canadian and select US commercial installations. White finish.