Optical range finder

The utility model discloses an optical range finder, and relates to the technical field of optical instruments, the optical range finder comprises an optical range finder body and a protective shell member matched with the optical range finder body, the optical range finder body comprises a shell, the upper surface of the shell is provided with a data display screen and a measurement key, the front end of the shell is provided with an emitter and a receiver, and the receiver is provided with a wireless communication module. A groove is formed in the bottom of the shell, and a finger ring is connected to the interior of the groove; the protective shell part comprises a plate piece, a limiting strip is fixedly connected to the tail end of the top of the plate piece, limiting blocking columns are arranged at the four corners of the top of the plate piece, a hanging ring is rotationally connected to the head end of the plate piece, and a hanging belt is connected to the hanging ring. According to the application,