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Your cart is empty.Features : 100% Brand New Voltage: DC 6-36V Output current: 300mA 3 Wire Polarity: NPN Dimention: M12x10x55mm Detection Distance: 4 mm Ouput Status: Normally Open Part number: LJ12A3-4-Z/BX Detection objects: Conductor Package Includes: 2x Inductive Proximity Sensor Detection Switch NPN DC6-36V LJ12A3-4-Z/BX
Larry
2025-08-29 15:15:17
I ordered the two-pack and received both, well packaged. Handy wiring info attached to the harness. I bench tested the sensors and they triggered down to 4 VDC, so I was encouraged that they would work with my 5V Arduino controlled CNC router. I used the first one as a Limit/Homing switch for an upgraded Z axis. Now that I know they work for my intended purpose, I'll be ordering another two-pack to upgrade the other axes from the original mechanical, normally-open limit switches to these normally-closed inductive switches. A NC setup is safer and contactless switches are more accurate, so a win-win for me.Two bonuses are these look awesome on my project, and they have a wide range of adjustability, so mounting them is a snap.
Erik A.
2025-08-03 15:45:46
These worked just fine as an early detection device for a slipping gearbox mount. You just have to connect them correctly. I purchased NPN proximity sensors which are not wired the same as PNP. If connecting to a relay PNP should be wired with the black wire in A1 and A2 going to ground, or reverse for NPN; black wire to A2 and A1 going to positive.
Joe M
2025-07-08 12:26:40
using it as a Z probe on my ender 3. the description says "6v-36v" but it works fine off 5v.according to the deviation test this probe has 0.001mm deviation
Jason Pfarr
2025-06-27 12:48:47
Trianing
Infinitek Designs
2025-06-16 12:33:38
Unfortunately, I couldn't get this to work with my printer. The fact that it is normally open and requires a way to regulate 12v and 5v, it is not worth the risk and trouble of "trying" to make it work.
Scott Hart
2025-06-13 11:56:06
Using as homing sensors for my CNC machine. They are the same sensors as the Longmill CNC machine.
A.J. Vera
2025-06-03 11:34:23
Perfect replacement for Tina 3D printer.
J
2025-02-13 16:02:44
I only got 1 sensor instead of two and with the correct wiring it acts as an NO switch vs NC.
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