The XTAR SD1 is a compact, multi-colour dive beacon designed to enhance underwater safety and communication. Its lightweight and durable construction make it an essential tool for divers seeking visibility and signalling capabilities. An excellent choice for divers seeking a reliable and versatile beacon for underwater signalling and safety. Its combination of multiple lighting modes, durable construction, and user-friendly features make it a valuable addition to any diving gear. This beacon can also be used for on the surface activities.