BIQU 3D printer parts patented product BL Touch Auto Bed Leveling Sensor To be a Premium 3D Printer kossel


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Product name: BLTouch Auto Bed Leveling Sensor

Wiring :

3Pin : Brown(- , GND) Red(+5V) Orange(control signal)

2Pin : Black(-, GND) White(Zmin)

Specification :

Voltage : 5V

Current : 15mA

Maximum(Peak) Current : 300mA

Case Material : Polycarbonat(PC)

Case Color : Semitransparent White

Cable Length : 150mm

PCB & Soldering : RoHS, Lead Free (Pb Free)

Summary :

BLTouch is an auto leveling sensor for 3D Printers that can precisely measure the tilt of Bed surface. It could work with any kinds of bed materials, such as glasses, woods, metals, and so on.


Main functions and controls of BLTouch are the same as usual auto bed leveling sensor, consists of RC servo and micro switch. Thus, BLTouch can be applied on almost every board.

BLTouch is fulfilled with simple structure and high precision by using progressively designed solenoid and hall sensor. It aims for user convenience and enjoyable printing by adding many smart functions, such as self-test, alarm, alarm release & Touch Switch mode, Blue LED for servo signal indicating and Z-probe(Zmin) Testing.

Hall Sensor : Free Bed Selection

BLTouch does not uses either optical, nor proximity(inductive/capacitive) sensor.

BLTouch is controlled by hall effect, providing high precision. Thus the bed material can be selected freely.

How to add cheap and easy auto mesh bed levelling? Please check out : Auto bed leveling sensor for 3D printers

Real BLTouch Auto Bed Leveling Sensor:1 pcs/2pcs

Additional information

Weight 0.04 kg
Dimensions 12 × 12 × 12 cm
Model Number

BL Touch

Brand Name


Item Type



BLTouch Auto Bed Leveling Sensor

Fit to

3D Printer



Maximum(Peak) Current



Semitransparent White

SMT & Soldering

Lead Free




Original BL touch