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URBEST® 8mm Detecting Distance Approach Sensor Inductive Proximity Switch NPN NO DC 6-36V Cylinder Type

4.3 4.3 out of 5 stars 258 ratings
$7.99
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Purchase options and add-ons

Operation Mode Automatic
Current Rating 0.3 Milliamps
Operating Voltage 36 Volts
Contact Type Normally Open
Brand URBEST
International Protection Rating IP54
Control Method App
Connectivity Protocol X-10
Unit Count 1.0 Count
Number of Items 1
Switch Type
Temperature Switch
Material
Paper, Plastic

About this item

  • Item Name : Inductive Proximity Switch; Model : LJ18A3-8-Z/BX; Package Qty: 1 Piece Switch
  • Wire Type : DC 3 Wire Type (Black, Brown, Blue);Switch Appearance Type : Cylinder Type; Material : Plastic, Alloy;
  • Theory : Inductive Sensor; Output Type: NPN NO(Normal Open);Diameter of Head : 18mm;Detecting Distance : 8mm
  • Supply Voltage : DC 6-36V;Current Output : 300mA;Detect Object : Iron;
  • Operating Temperature : -25C to +55C (Non-freezing Condition);Size : 7 x 3cm/2.8'' x 1.2'' (L*Max. Dia);Cable Length : 103cm / 40.55"
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Customer ratings by feature

Value for money
4.3 4.3
Accuracy
4.0 4.0
See all reviews

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URBEST® 8mm Detecting Distance Approach Sensor Inductive Proximity Switch NPN NO DC 6-36V Cylinder Type
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Product Description

It is a component widely used in automatic control industry for detecting, controlling, and noncontact switching.
When proximity switch is close to some target object, it will send out control signal.
It's widely used in machine, paper making, light industry for limiting station, orientation taking count, speeding trial ect.

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URBEST® 8mm Detecting Distance Approach Sensor Inductive Proximity Switch NPN NO DC 6-36V Cylinder Type

URBEST® 8mm Detecting Distance Approach Sensor Inductive Proximity Switch NPN NO DC 6-36V Cylinder Type

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Customer reviews

4.3 out of 5 stars
4.3 out of 5
258 global ratings

Customers say

Customers like the connectivity, accuracy, and consistency of the electronic switch. For example, they mention it's reliable, makes their printer very accurate, and stays consistent for every print. That said, some complain about the adjustability, saying it requires slight adjusting every time it'd be used and that there is no fine adjustment in the back. Opinions are mixed on sensor.

AI-generated from the text of customer reviews

36 customers mention30 positive6 negative

Customers like the performance of the electronic switch. They mention that it works well, is perfect for their application, and works great for 3D printer autoleveling. Some say that the sensor works phenomenal.

"...I think this sensor is priced well and performs exactly as advertised" Read more

"...works great." Read more

"It works OK, I am only feeding with 5v so that may be a bit of an issue, but I a using it with a 3d printer...." Read more

"...It works great right out of the packaging, just needed to flash marlin to the board and change a couple small config options...." Read more

9 customers mention7 positive2 negative

Customers like the accuracy of the electronic switch. They say it works with good precision and makes their 3D printer very accurate.

"It's been great and made my printer very accurate...." Read more

"...For the price, accuracy and reliability. These just can’t be beat. Three wires and minimal downtime. She’s printing like new all over again." Read more

"...In testing, it was accurate an average of .03 MM. More precise then I expected, and unlike my last probe, has not slammed the bed yet." Read more

"I bought two of these units and both were wildly inaccurate, and not even consistently inaccurate between the two...." Read more

4 customers mention4 positive0 negative

Customers are satisfied with the connectivity of the electronic switch. They mention that it's reliable and accurate.

"...For the price, accuracy and reliability. These just can’t be beat. Three wires and minimal downtime. She’s printing like new all over again." Read more

"...Senses the aluminum bed somewhere in the 4-5mm distance. It's quite reliable and accurate..." Read more

"Reliable, but can add some complications...." Read more

"Good product..." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the consistency of the electronic switch. They mention that it stays consistent for every print, and is repeatable.

"...print during initial layer, with this sensor added it stays consistent for every print!" Read more

"...Seems very repeatable. I did add a voltage divider so I could run it off the 24V power supply and supply the < 5v signal." Read more

"Consistent home for printer...." Read more

3 customers mention3 positive0 negative

Customers find the installation of the electronic switch to be easy. They mention that it's straight forward and a direct replacement for the probe that initially comes on the CRT-10s Pro.

"Was a really easy direct replacement for the probe that initially comes on the cr10s pro. Just cut the wires and solder the same color together...." Read more

"...to connect and solder wires as it is not plug-n-play, but its fairly straight forward. It worked perfect and seems to perform much better than stock...." Read more

"Bought this for my CR-10s Pro. Very easy to install but mine had to be closer to the build plate than the guide I was using said...." Read more

7 customers mention4 positive3 negative

Customers have mixed opinions about the sensor. Some say it's a great sensor for projects and a good sensor for 3D printers, while others say that the sensing range may be shortened at 5V. The sensing distance is a little inconsistent, but can still be used to improve bed leveling.

"Great inductive sensor. I was skeptical when purchasing about whether it would work at 5V or not since some people say it will and some say it wont...." Read more

"Sensing distance is a little inconsistent but can still be used to improve bed leveling" Read more

"Cool sensor. I ordered different sizes for a project. This one operated well, but, was a bit too. Ig for my application...." Read more

"Great sensor. Works perfectly." Read more

3 customers mention0 positive3 negative

Customers are dissatisfied with the adjustability of the electronic switch. They mention that it requires slight adjusting every time it's used, does not hold an exact zero, and that there is no fine adjustment in the back.

"...There is no screw to adjust sensitivity, but obviously raising and lowering the sensor will achieve the same thing...." Read more

"...Works well, but has slight variance. Requires slight adjusting every time it's used, does not hold an exact zero...." Read more

"...There is no fine adjustment in the back either. So there is no way to bring it closer to the object detected. I'm buying a BL touch for my printer." Read more

Fantastic Upgrade
5 Stars
Fantastic Upgrade
The last one I bought was 5 years ago to upgrade my CR-10S Pro V1. Of course, over time and usage. I finally had an internal short (cable) and it was time to replace it.For the price, accuracy and reliability. These just can’t be beat. Three wires and minimal downtime. She’s printing like new all over again.
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Top reviews from the United States

Jordan
5.0 out of 5 stars Works as it should.
Reviewed in the United States on January 5, 2018
Verified Purchase
Great inductive sensor. I was skeptical when purchasing about whether it would work at 5V or not since some people say it will and some say it wont. In my case it did work just fine at 5V. The sensing range may be shortened at this voltage, but for my application it was more than enough. There is no screw to adjust sensitivity, but obviously raising and lowering the sensor will achieve the same thing. I mistakingly bought this thinking it would sense fine with an uncovered glass bed on my 3D printer but found that it will only sense the aluminum below. Considering my glass and aluminum are actually very flat, this has not been an issue to my application but beware not to make the same mistake as I did. I think this sensor is priced well and performs exactly as advertised
7 people found this helpful
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Tool Junkie
5.0 out of 5 stars These things are Great!
Reviewed in the United States on July 3, 2019
Verified Purchase
I love these things, we use them on our 3D printers to upgrade from Cap sense. I thought hey I bet those might work
on my plasma table. They are potted so the lower part is water tight but the top will let water in. Bad news for a water table. The caps are just held in with superglue, you can use a knife edge between the metal case and the lid to pry it off.
I used clear RTV around the insde of the cap to seal the cable and lid, to make it water tight. works great.
Customer image
Tool Junkie
5.0 out of 5 stars These things are Great!
Reviewed in the United States on July 3, 2019
I love these things, we use them on our 3D printers to upgrade from Cap sense. I thought hey I bet those might work
on my plasma table. They are potted so the lower part is water tight but the top will let water in. Bad news for a water table. The caps are just held in with superglue, you can use a knife edge between the metal case and the lid to pry it off.
I used clear RTV around the insde of the cap to seal the cable and lid, to make it water tight. works great.
Images in this review
Customer image
Customer image
4 people found this helpful
Helpful
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Lindsay F.
4.0 out of 5 stars Reliable, but can add some complications.
Reviewed in the United States on September 24, 2019
Verified Purchase
It's been great and made my printer very accurate. The downside is if your bed is warped, I haven't been able to find a replacement metal bed.

Also, it can vary from the distance of the stock sensor, so the measuring block they give you won't work. I had to use a stack of papers, and slowly remove sheets until I got it perfect.
Helpful
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Henry
5.0 out of 5 stars Fantastic Upgrade
Reviewed in the United States on May 3, 2024
Verified Purchase
The last one I bought was 5 years ago to upgrade my CR-10S Pro V1. Of course, over time and usage. I finally had an internal short (cable) and it was time to replace it.

For the price, accuracy and reliability. These just can’t be beat. Three wires and minimal downtime. She’s printing like new all over again.
Customer image
Henry
5.0 out of 5 stars Fantastic Upgrade
Reviewed in the United States on May 3, 2024
The last one I bought was 5 years ago to upgrade my CR-10S Pro V1. Of course, over time and usage. I finally had an internal short (cable) and it was time to replace it.

For the price, accuracy and reliability. These just can’t be beat. Three wires and minimal downtime. She’s printing like new all over again.
Images in this review
Customer image
Customer image
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J e f f Bezos
5.0 out of 5 stars Definitely upgrade over the standard crs10 pro sensor
Reviewed in the United States on November 4, 2023
Verified Purchase
Soooooo much better . I had so many issues over the last 2 years with that damn blue stock sensor. Can't believe I didnt buy this way sooner.
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CHRISTOPHE CHICHESTER
3.0 out of 5 stars It works OK
Reviewed in the United States on April 2, 2018
Verified Purchase
It works OK, I am only feeding with 5v so that may be a bit of an issue, but I a using it with a 3d printer. It doesn't necessarily seem to engage always at the same point from use to use, I've had to reposition it several times. I also may need a better mount than what I initially used. I will update later if I end up printing a better mount
One person found this helpful
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Sullydoc101
5.0 out of 5 stars Great upgrade to cr10s pro.
Reviewed in the United States on March 12, 2020
Verified Purchase
Was a really easy direct replacement for the probe that initially comes on the cr10s pro. Just cut the wires and solder the same color together. Works way better than the fickle probe that comes with the printer.

Of note, I ended up breaking the first probe I got by trying to test it before installation. The black wire is the signal wire and not the negative. If you hook it up to a 9v battery wrong it will fry and no longer work. I wanted to test it before installation since I had replaced my bed with a magnetic flexible bed but that was a bad idea. I ordered a replacement probe and installed it and working great.
One person found this helpful
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ant
1.0 out of 5 stars Wrong and used item
Reviewed in the United States on January 15, 2024
Verified Purchase
in listing it's 3 wires: blue, black and brown.
the one that arrived has only brown and blue.
Wires and device look used and weard off.
Package shows signs of multiple openings, labels added and removed.
Customer image
ant
1.0 out of 5 stars Wrong and used item
Reviewed in the United States on January 15, 2024
in listing it's 3 wires: blue, black and brown.
the one that arrived has only brown and blue.
Wires and device look used and weard off.
Package shows signs of multiple openings, labels added and removed.
Images in this review
Customer image Customer image
Customer imageCustomer image
One person found this helpful
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Top reviews from other countries

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Martin Simard
5.0 out of 5 stars Bon produit!
Reviewed in Canada on June 2, 2021
Verified Purchase
Excellent produit, je l'utilise depuis 2 ans sur ma decoupeuse au plasma dans des conditions extrêmement difficiles, et les capteurs ont toujours été fiable
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APHU
5.0 out of 5 stars センサーの精度が上がり失敗が少なくなりました
Reviewed in Japan on January 9, 2024
Verified Purchase
センサーの感度が不安定なため失敗が多かったのですが、センサーを交換してから高さ調整が以前より容易になりました。またセンサー自体の金額が高くはなく、注文してから比較的早く送られてきたのでありがたかったです。
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