Probably work better on steel than aluminum. They seem as at least as accurate as a physical switch would be with apparent tolerance around a few thou. These are normally open though so you won't have any indication if a wire breaks until your machine crashes. They also did not come with a sticker on them that said what the correct connection was luckily they were the same as the other ones with brown being voltage input blue being ground and black being switched signal.
Verified purchase: Yes | Condition: New
What a cool device, made checking my well water level simple and accurater
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Works as described. Make sure when using separate DC power supplies for motor and prox switches - ground the negative pins together.
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simple to install and working great
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Using these in an arduino for an escape room. They work perfectly.
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