SN-GDD-1 beam/diffused infrared photoelectric sensor consist of a pair of emitter and receiver installed face to face which compose a circuit. After power is supplied, the receiver will send out an electric signal (NPN/PNP) to the controlled equipment and system when the infrared beam from emitter is blocked by an object.
For example:G18-3A10NA
That indicates the infrared ray photoelectric switch of M18 cylinder, DC10-30V working voltage, diffused reflection type, detection distance 10cm, and NPN normally open type.
Technical parameters
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