1Applicable Models: Electronic bed leveling tool is fit for 3D Printer. Please confirm whether your model is applicable before buying. 2Main Function: This electronic bed leveling tool can effectively help users level the printing bed to ensure printing quality and stability. 3Perfect Performance: The 3D printer leveler will provide you with visual feedback to help you perfectly adjust the bed level of your 3D printer. 4Lightweight and Durable: 3D printer auxiliary leveler is made of high grade material, lightweight and durable, it can be used for a long time without deformation or wear and tear. 5Easy Steps: 1. Heat your bed to the working temperature you want to use. 5 to 10 minutes to stabilize the temperature 2. Go to Aux: Leveling Option, until the electronic leveler fits under the nozzle, use Aux 3. Level and adjust the tension knob until the light almost starts flashing 4. Run the Cr touch Auto Lvl function to build the grid, then return to Aux 5. Level and check z axis offset in the middle of the bed.