Abstract: An electronic survey stadia to ascertain distance and elevation data from a rotary laser beam(s) in relation to known points. To ascertain elevation data stadia is in perpendicular position in relation to rotary laser beam plane. When beam impinges upon stadia, a measurement is taken by evaluation circuit, processed by an algorithm, then stored in memory and output to display device for use. To ascertain distance measurements, stadia is placed parallel in rotary laser beam(s) plane. The stadia self calibrates by counting rotational speed of laser beam. Once RPM and direction are established, stadia then measures time of laser beam to cover a known distance within stadia. This value is then used in an algorithm to produce distance measurements, thus producing distance and elevation data to memory and display.