NEMA WD 7
NEMA WD 7 2011-JAN-01 Occupancy Moton Sensors Standard
This standard publication covers the definition and measurement of field of view and coverage characteristics relevant to the use and application of vacancy and occupancy sensors using individual or any combination of passive infrared, ultrasonic, or microwave technology. These sensors are used in systems for control of lighting, heating, ventilating, and air conditioning (HVAC), and other devices.