This handheld rangefinder adopts a compact light source design and an optical common-eye system for viewing, aiming and receiving, and has a built-in transmissive OLED display, electronic cross reticle, real-time display of information such as distance information, battery power, and operating frequency. ; In addition, Beidou navigation or infrared TV images can be configured; in addition, this rangefinder provides OEM version , which is smaller in size and can be integrated into photoelectric pods and other equipment.