Feature:1. The sensor is the electronic component of the 3D printer, and can accurately measure the inclination of the bed surface.2. The leveling sensor can be used with any kind of bed material, such as glass, wood, metal, etc.3. The 3D printer accessories ppossess a simple structure and high accuracy, which can bring convenient printing effect.4. With automatic leveling function, the sensor is easier to use and can improve efficiency.5. The color of the kit is transparent, the diameter of brass nozzle include 0.2/0.3/0.4/0.5/0.6mm and the kit is suitable for Ender‑3/CR‑10 3D printer.Specification:Item Type: Automatic Leveling Sensor KitMaterial: PTFE+BrassModel: For Ender-3/CR-10Purpose: For Ender-3/CR-10 3D PrinterMK9 Brass Nozzle Diameter: 0.2/0.3/0.4/0.5/0.6mmApplicable Models: For Ender-3/CR-10 3D Printer Package List:1 x Blue PTFE Tube1 x Automatic Leveling Sensor1 x Bracket2 x Pneumatic Connector1 x Burner2 x Plug-In4 x Screw1 x Connection Line1 x Adapter Board2 x Tie1 x Wrench5 x Brass NozzleNote:Some 3D printer motherboards have insufficient 5V power supply and may require an external 5V power supply. This is manifested as the difficulty of pushing out the probe, or the logic circuit protection main control restarts during operation. If encountered, it is generally recommended to use a DC‑DC step‑down module to take power from the main power supply.1. +5V and GND should not be connected reversely for a long time, it may be burnt if reversed2. Please try to keep away from strong magnets, motors, fans, and other magnetic components3. Accidentally hitting the pro