Package includes: 1 complete set (AA or BB hotend) 1 cartridge 1 PT100 sensor Key benefits: Reliable and precise temperature measurement with the included PT100 sensor, ensuring consistent print quality. Durable construction designed for longterm use, reducing downtime and maintenance requirements. Easy installation into compatible 3D printers, allowing quick replacement or upgrade. Features: Function: Hotend assembly for accurate filament melting and extrusion. Compatibility: Suitable for AA or BB hotend configurations in compatible 3D printer models. Size: Standard hotend dimensions compatible with factory mounting systems. Material: quality components engineered for heat transfer and stability. Performance: Supports precise temperature control and stable extrusion for professionalgrade printing results. Practical applications: 1. Ideal for upgrading an existing 3D printer to improve print precision and filament handling. 2. Suitable for replacing worn or damaged hotend assemblies to restore machine performance. 3. Used in multimaterial printing setups where accurate temperature control is essential for quality output.