• TED-Ed Turns Videos Into Interactive Lessons

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• Ceiling Mount PIR Occupancy Sensor For Classroom, Staff Room And Study Hall | PAMMVI

  Tags: motion, sensor, ultrasonic, 230v, occupancy, PIR, wireless, LED, floodlights, indoor, outdoor, toilet, light, presence, lights, photoelectric, switch, wall, mount, ceiling, detector, lux, Passive, Infrared, High, frequency, for, t5, lamps, 360, degree, lamp, 180

  • – By Intesab Husain

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