








⚙️ Upgrade your automation game with precision that stops at nothing!
The LJ12A3-4-Z/AX is a high-performance inductive proximity sensor featuring a 4mm detection range, NPN normally closed output, and a robust metal cylinder design. Compatible with DC voltages from 6 to 36V and supporting up to 300mA output current, this sensor is ideal for precise, contactless detection of iron objects in industrial and DIY automation projects. Its compact M12 threaded body and straightforward 3-wire connection make it a must-have for millennial professionals upgrading CNC routers, robotics, and smart manufacturing setups.
| ASIN | B073XDKM9S |
| Best Sellers Rank | #86,951 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Inductive Proximity Sensors |
| Date First Available | July 14, 2017 |
| Item Weight | 2.08 ounces |
| Item model number | JJ-0021 |
| Manufacturer | Taiss |
| Package Dimensions | 4.29 x 2.95 x 0.71 inches |
L**Y
Exactly as described
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.
K**R
Works on 5v, senses aluminum within 3mm
Works exactly as described. Using these for all 4 limits on a custom CNC build, they’re working flawlessly on the 5v of the Flexihal breakout. They seem to trigger around ~3mm and are fast enough to stop a crash at 500ipm
D**L
calidad excelente, duras, resistentes
C**.
Susceptible to noise
Using for CNC end stops but they constantly trigger. An RC filter or twisted and shielded wire is absolutely required.
N**L
works on tachometer
works on tachometer used instead of magnetic pickup . magnet kept picking up shavings from lathe
D**L
Not as advertised.
This ships as a single unit not 2 as described. It is also a NO switch not NC as shown in the descriptiom
J**M
works on my 3D printer
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
M**K
A prox is a prox it works.
I’m using it for a snow blower, as to not over lift, works fine.