Antclabs BLTouch Levelling Sensor

Automatic levelling sensor for retrofitting your 3D printer


  • High precision
  • Works with all surfaces
  • Easy installation
  • Smart functions
  • £36.40

Price shown includes 20% VAT. Excludes delivery costs

In stock

Delivery on Monday, 08 November: Order today until 10:00.

Content: 1 pc

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Item no.: ANT-BLTOUCH, Content: 1 pc

EAN: n/a

  • High precision
  • Works with all surfaces
  • Easy installation
  • Smart functions

Product information & technical details

Manufacturer No.: BLTOUCH
Manufacturers: Antclabs
Content: 1 pc


The famous BLTouch sensor from ANTCLABS from South Korea! The BLTouch is a 3D printer bed levelling sensor that enables automatic bed levelling on your 3D printer regardless of the printing surface.

BLTouch is an automatic level sensor for 3D printers, with which the inclination of the bed surface can be measured precisely. It can work with all types of print bed surfaces such as glass, blue tape or other materials.

Easy installation

The BL Touch has two wiring groups, one with three and one with two wires. The group of three wires is a standard servo connection and the group of two wires is a switch. The probe is controlled via the servo connection and extended and retracted if necessary. The switch notifies the printer when the probe has touched the bed. Consult the documentation of your switch module to find out where these cables can be connected. The exact function of the individual wires is listed in the manual. When installing on your hotend, make sure that the extended probe reaches under the nozzle, otherwise the probe is unusable! Be sure to test this visually before trying to use the BLTouch.

The BLTouch is connected to the control board of your 3D printer via four pins and has the following functions:

  • Brown & Black: Grounding
  • Red: 5 V
  • Orange: control signal
  • White: Z-min

Note that depending on your 3D printer, a firmware update may be required for the BLTouch to work properly.


The main functions of BLTouch are the same as with conventional automatic level sensors. BLTouch can, therefore, be used on almost any printer.

BLTouch has a simple structure and high precision thanks to the use of a progressively designed solenoid and Hall sensor. It aims for ease of use and pleasant printing by incorporating many intelligent functions such as self-test, alarm, alarm triggering and touch switch mode, blue LED for the display of the servo signal and Z-Probe (Zmin) tests.

Contents of delivery:

  • 1 x BLTouch (Smart V3.1)
  • 2 x screw & nut & washer
  • 2 x springs for BLTouch assembly
  • 2 x Dupont housing 3Pin
  • 2 x Dupont housing 2pin
  • 3 x Dupont housing 1 pin
  • 10 x Dupont pins
  • 1 x jumper cap

IMPORTANT: With many devices, a suitable Antclabs extension cable is necessary for use. Which extension cable is compatible must be checked directly on the 3D printer.


Product videos:

  • BL Touch

  • Creality Ender 3 V2 Upgrade Tutorial

Questions & Answers about Antclabs BLTouch Levelling Sensor

Pose a question about this product to customers who have already purchased the item. Please forward any other order-related questions to our Customer Service Team.

  • Is this a direct replacement for the device found on a CR-10S Pro V2 (bought new September 2020)?

    1 Answer, last answered on 22 September 2021

  • Hi there! I was wondering what cable I need to buy for it to be compatible with my Ender 3 pro? Thank you!

    1 Answer, last answered on 10 August 2021

  • Hi . Is this compatible with a cr10 v2 with a 2.5.2 board ?

    1 Answer, last answered on 11 August 2021

  • Maybe a daft question, but is this compatible with the Ender 3 Pro printer? Many thanks......

    1 Answer, last answered on 25 May 2021

  • Will this work on a Creality CR-5 PRO? If a Creality CR-5 H Pro have one why not one for CR-5 Pro?

    This question has not been answered yet.

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Customer Reviews

10 English reviews written for Antclabs BLTouch Levelling Sensor

51 customer reviews in all languages

4,7 out of 5 stars
5 stars
98 (85%)
4 stars
7 (6%)
3 stars
3 (2%)
2 stars
1 (0%)
1 Stars
5 (4%)

114 reviews
10 customer reviews in English
51 customer reviews in all languages

Did you know?

The concept of the 3D printer came about from an American inventor and engineer, Chuck Hull, during the s80s. He also founded the company called 3D Systems.