Features: High quality environmentally friendly. Strong compatibility for P1/X1 series 3D printers easily installs and use. Highly temperature resistant high stability, able to work stably for long time The sensoring responds quickly and accurately reads the temperature data of the heat bed ensures the stability of the printing process. The Mainboard is easy and convenient installs, suitable for enthusiasts and technicians. Specifications: Size:about 29x15mm/1.14x0.59in Item：Hot bed Sensoring /Piezo Interface Motherboard For P1/X1 Series 3D Printers Type：Heated Piezo Interface Board/Heated Bed Sensoring Board Optional Package Includes: 1PC Hot bed Sensoring /Heated Piezo Motherboard note: Due to the problem of lighting effect there might be tolerances in product, please understand. Please allow 0-2mm error due to manual measurement.