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    2020-06-10 07:14:14

    Geniales! ninguna queja

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    2019-08-30 05:55:24

    As discribed, not tested yet.

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    proximity sensor switch

    2017-09-12 22:41:13

    Looks like decent quality and good value. Some instructions in English. Sensor has a wiring diagram on a label that's helpful. The sensor works well see photos of a test with an LED attached to the sensor at 6V draws about 130 mA.

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    Works as advertised

    2017-02-14 13:05:56

    Ordered 2 same items. One of them had different label (see picture) and did not work on 5v. The other one does work on 5v (label says 300mA switch load). The one that did not work had 200mA switch load. It is a suprise if you get a version that works on 5v, as is mentioned in some video's and forums.

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    LJ12A3-4-Z/BY Proximity Sensor

    2016-09-14 19:52:39

    I ordered two of these PNP style proximity sensors for use on a 3D printer project because of the very good price. Both received in good condition. I connected one of the sensors to a 12 volt power source and tested its sensitivity. It worked perfectly, triggering the on-board indicator light at exactly 4 mm. The output lead is at zero volts when the not triggered and rises to almost the same level as the power supply voltage when it is triggered (within about 1 volt of supply). The brown wire connects

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    A must have for all DIY 3D Printer Enthusiasts.

    2017-02-01 05:29:35

    Considering how little it costs given the benefits, I would definitely recommend this product. Ordered two of them, and got delivered in 14 days of ordering. Came nicely packed in and safe. Unlike some other people, mine do not work on +5V, and the LED is pretty dim. But plugging in to +12V works perfectly.

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    2019-02-05 07:49:29

    супер много добре

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    2019-02-02 21:02:01

    Producto muy bueno, tal como estna en las fotos, probados todos y funcionan perfectos a partir de 6vdc, detecta exacto en 4mm con hierro y acero, con aluminio en 2mm. me llegaron rápido a mi país Venezuela desde China...

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    good

    2018-08-10 15:28:28

    good

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    Product works well

    2017-05-02 01:38:15

    This proximity sensor is shipped in a clear sealed polyethylene bag for protection against water damage during shipping. It works well with my 3D printer, and eliminates the hassle of having to level the bed. I'm going to buy another for the new printer I'm building.

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