Bluetooth beacon

The utility model relates to the technical field of positioning devices. The utility model discloses a Bluetooth beacon. The utility model provides a Bluetooth beacon. Both the inner shell and the outer shell are groove-shaped; the bottom plate is detachably connected with the opening end of the inner shell; the outer shell is arranged on the inner shell in a sleeving mode and detachably connectedwith the inner shell. Wherein the circuit board is arranged in the inner shell, a power supply is arranged on the circuit board, a first window is formed in the position, opposite to the power supply, of the inner shell, the position, opposite to the power supply, of the outer shell is arranged at the second window through a second window and a safety mark, and a power supply limiting groove is formed in the side face, facing the power supply, of the safety mark. The Bluetooth beacon has positioning and safety indication functions at the same time, and when the battery needs to be replaced, only the outer shell needs