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Subject :
	Difference between EA1442 / EA1440 & EA1441

Description :
	What is the difference between EA1442 (Reed Door Sensor) and EA1440 (photo door sensor)/EA1441 (inductive proximity)?

Solution :
	The EA1442 uses a magnet to monitor opening / closing the enclosure's door. The EA1440 uses light reflection to monitor opening / closing the enclosure's door. The EA1441 uses a magnetic field change to monitor opening / closing the enclosure's door.

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