Ceiling Mount 360 Degree PIR Occupancy Motion Sensor
360 Degree Infrared PIR Ceiling Occupancy Motion Sensor Switch with Time Delay for LED Ceiling Light, Suitable for Corridors, Bathrooms, Basements, Warehouses, Garages, etc - Amazon.com
Clipsal - Motion Sensor, Infrascan PIR Sensor, 360 Degree, Flush Ceiling Mount, Gimble, Single Output
IS-280CM - Honeywell Home Intellisense Hardwired 360° Ceiling-Mount Motion Detector