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The PIR motion detector detects infrared energy emitted from the human body. When a person walks in the detection circumference,the sensor will register a sudden increase of infrared energy. Human body body emits a certain amount of infrared energy about 9-10 micrometers around 32°C . Thus the sensor is typically sensitive in the range of 8-12 micrometers at which a signal will be sent and the door will open.The door stays open until the person is out of range at which the door closes.
Working Specifications
The manually operated activators control; the automatic opening and closing,reduce opening width and sequence opening. It also has reset functions and maintenance indicator to notify when the door has reached its programmed number of cycles.
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