Features: Official Strain Gauge Leveling sensoring for Plus 3D Printer delivers high sensitivity deformation detection and precise bed leveling for print accuracy. This auto leveling sensoring measuring strain variation during printing to ensure consistent nozzle to bed distance. Essential upgraded for 3D printing technicians and maker requiring professional bed calibration tools for complex model fabrication. Optimizes print bed alignment during multiple layer projects, industrial prototyping, and demanding ABS filament applications. Features real time stress feedback technology that actively compensates for thermal expansion variation across for Plus printer build plate. Specifications: Component:ABS Size:Approx.37.95x23.9mm/1.49x0.94inch Package Includes: 1Pc Strain Gauge sensoring note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.