Features: New upgraded Creality BL for Touch V3.1 works for Creality Ender-3 ,Ender-5/5S/5PRO,Ender-6,CR-10,BT-TOUCH with 32 bit V4.2.2 or V4.2.7 mainboard. Download the BL-Touch firmware and copy it to the TF/SD card from the Creality official website, directly insert into the 3D printer card slot to update the program. With 3 different mounting brackets can be installed on multiple 3d printers. BL-Touch sensor is small in size and simple in structure, printing when connected. The standard deviation is only 0.005mm,it can accurately measure the inclination of the hot bed and automatic compensation of Z axis, easily avoid the uneven hot bed, so as to stable print. It could work with any kinds of bed materials, such as ABS, PLA, glasses, woods, metals, plastic and so on. Specifications: Material: ABS+metal Model:BL for Touch Product Size:26x11x40mm/1.02x0.43x1.57inches N.for W.:6.83g Package Weight:77.21g Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1Set x Self Leveling Sensor 32Bit