The PD Sensor is a 4-wire, analog photo sensor providing a light level input into PLC Buildings’ S-Series, LC3X lighting controls, and other building automation systems. The PD has six models, each used in various locations around buildings and other specialty applications.
Indoor sensor used in offices and classrooms. Outdoor sensor low range for sign and site lighting Outdoor sensor high range for contrast lighting and tunnel daytime lighting control Atrium sensor measures light in lobbies Skylight sensor to read the ambient light available in warehouse skylights
Each sensor has a different range and focus of the light being measured.