Inductive Sensor Probe LJ18A3-8-Z/BX Expand

Inductive Sensor Probe LJ18A3-8-Z/BX NPN OPEN



This LJ18A3-8-Z/BX NPN OPEN Inductive Sensor Probe is ideal for automatic bed levelling, commonly used with the Inductive Probe Adapter for RAMPS boards.

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The LJ18A3-8-Z/BX NPN OPEN Inductive Sensor Probe is a normally open sensor that can detect the presence of metals at a range of up to 8mm, and is the ideal solution if you’ve been looking for an inexpensive way to add an automatic bed levelling system to your 3D printer. It operates on voltages between 6V and 36V DC, and can be connected to various Controller Boards as well as the ever-common RAMPS via the specialised Inductive Probe Adapter.

Although this sensor is not necessarily an upgrade from the previous LJ12A3-4-Z/BX NPN OPEN Inductive Sensors that we already stock, it does offer the benefit of a longer sensing reach, and can detect metals at up to 8mm distance compared to the previous 4mm. This ensures that it will be able to maintain accurate detection capabilities even if you have a pane of glass or other type of Build Platform installed on the metal bed.

Additionally, if you don’t have a metal heatbed for the sensor to detect, you can simply place a layer of tin foil between the bed and the build platform. This will allow the sensor to operate without any problems, and without affecting the heating or insulation capabilities of 3D Printers.


LJ18A3-8-Z/BX NPN OPEN Inductive Sensor Probe  -  Technical Specifications:

  • Model

– LJ18A3-8-Z/BX

  • Detection Distance

– 8mm

  • Sensor Type

– Inductive (Metal Detection)

  • Operating Voltage

– 6V to 36V DC

  • Output Current

– 300mA

  • NPN

– NO (Normally Open)

  • Dimensions

– 65mm Length / 18mm Diameter

  • Cable Length

– 103cm


Typical Applications for LJ18A3-8-Z/BX NPN OPEN Inductive Sensor Probes:

Equipping your 3D Printers with automatic bed levelling systems is one of the easiest ways to enhance the efficiency and convenience of your 3D Printing adventures, and helps to save you time as well as money in a few different ways.

In terms of time savings, these sensors mean that you won’t have to manually inspect each of the points on the heatbed to see if they are all the right height, and can instead simply perform the automatic bed levelling task and make quick adjustments accordingly. In terms of cost savings, these sensors will help you get your first layer adhesion right every time, which will of course save on 3D Filament expenses and reduce the number of totally failed prints that happen.

There are few upgrades that offer as many benefits as these LJ18A3-8-Z/BX Inductive Sensor Probes do, and at such a low price they are without a doubt one of the best investments you can make. Not only do these sensors offer time and cost saving advantages, but they also help to improve overall print quality and consistency, ensuring that you will never be plagued by unlevelled beds again.


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Inductive Sensor Probe LJ18A3-8-Z/BX NPN OPEN

Inductive Sensor Probe LJ18A3-8-Z/BX NPN OPEN