The new Transponder - use it for both 60��_�� or 360��_�� measuring. Built-in audible sound signal when the transponder is activated or when ultrasonic signal is given. only one AA cell battery required for use. Attach to belt with the custom clip holster, pin it to the tree or use the plot cent staff and adapter for radius measurement. Batteries not included.
Compatible with all previous versions of the Vertex Hypsometer!