Wide Application: This for bltouch kit is suitable for 3 v2/5 pro/10 3d printer with 32bit v4.2.2 or v4.2.7 motherboard. Requires a 3d printer with a 32bit v4.2.2 or v4.2.7 motherboard.Firmware installation is simple: download for the touch firmware from the website and copy it to the tf/sd card, directly insert the tf/sd card and power cord.Then press the switch. Wait a few seconds for the firmware to install. Note: Each machine has own operating interface.High precision: The standard deviation of for touch is about 0.005mm, which is easy to level and has high precision.For The Bltouch bed automatic leveling sensor has a simple structure and high precision.Uses: Suitable for all kinds of bedding such as glass, wood, metal, plastic and all materials.Easy to install: For The touch sensor is small and easy to print when connected.Accurately measure the inclination of the hot bed and automatic z compensation to avoid unevenness of the hot bed and stable printing.colour: as shownMaterial: Metal+PlasticPackage Contents:1 x Auto level sensor1 x screw pack1 x 1.255PSYP2P+3P line (170mm)1 x 1.25XH2P 3P cable (1.5m)4 x 1 x Sensor fixing bracketOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/ 13cm.