BLTouch Expansion Module Auto Leveling Sensor for 3D Printer Board CR10 Ender-3/Ender 3 Pro Kossel


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SKU: 1611636
  1. Compatible With: CR10 Ender-3/Ender 3 Pro Kossel
  2. Voltage / Current: 4.8 ~ 5.1 V
  3. Current Maximum (Peak): 15mA – 300mA
  4. PCB / Soldering: OSP / Lead Free


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Brand: Generic
Category: Other 3D Printer Accessories

This is BLTouch Expansion Module Auto Leveling Sensor Adapter Plate 3D Printer Board CR10 Ender-3/Ender 3 Pro Kossel. 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.

Note: Refer to datasheet in the ATTACHMENTS section for more info. regd. the product.


  1. Easy to use
  2. Easy to install
  3. Good quality product
  4. Logic Voltage Free(Open Drain Output): 3.3V / 5V The desired output logic voltage is stored in the EEPROM of the probe and can be selected by commands.
  5. Long Stroke: The stroke is up to 1.6mm longer than V2.0
  6. Z trigger with adaptable width: The Z trigger pulse with adaptable width beyond 10ms eliminates the danger of firmware missing the
    trigger and the nozzle reaching the bed.

Package Includes:

1 x BLTouch Expansion Module Auto Leveling Sensor for 3D Printer Board CR10 Ender-3/Ender 3 Pro Kossel

1 x Accessories Set (as shown in image)

SKU: 1611636 Category:
Item Type:


Size (mm):



CR10 Ender 3, Ender 3 Pro Kossel


Metal, Plastic

Rated Voltage (V)

4.8 ~ 5.1

Current Maximum (Peak)

15mA, 300mA

PCB Soldering Type

OSP / Lead Free

Shipping Weight 0.03 kg
Shipping Dimensions 12 × 9 × 3 cm
15 Days Warranty Against Sealed Product

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defect.  Reimbursement or replacement will be done against manufacturing defects.

What voids the warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Warranty  Against Sealed Product:

This product comes with manufacturer seal so, warranty Policy shall cover only those issues pertaining to the manufacturing defects in the product. In any other case, No return will be accepted if the seal is broken.

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Country Of Origin: China