The OKY2307 with Shield is an electronic module designed for 3D printer construction. It is manufactured by OKYSTAR and designed for use with Fused Filament Fabrication (FFF) 3D Printers. The kit includes a solid-state relay, onboard temperature controller and over-temperature alarm. The Shield also provides isolation from high voltage and prevents fluctuations from external sources, thereby ensuring safe and reliable operation. The module is a complete solution for the control of the FFF 3D printer.