... Motion Sensor (occupancy detector, PIR, auto sensor) Ceiling Mounted Infrared Motion Sensor ((occupancy detector, PIR, auto sensor)1. ... motion speed:0.6~1.5m/s6. CE, GS Approval Model NumberVST-PD511TL-DSTPower Source 12V/AC~24V/AC Power Consumption ... 2.5-5mDimension: Diameter:90mm High:28mmWorking Humidity<93%RH Ceiling Mounted Infrared Motion Sensor