Sensor rod assembly for measuring elevations

A sensor rod apparatus comprising:

• a sensor rod assembly including a plurality of sensor devices;
• detection circuitry coupled to the plurality of sensor devices, wherein the detection circuitry is configured to determine a position of an incident laser beam from a laser level on the sensor rod assembly, wherein the detection circuitry is disposed on the sensor rod assembly, wherein the plurality of sensor devices comprises between 5 and 500 sensor devices per lineal foot;
• a controller including one or more processors, the one or more processors communicatively coupled to the detection circuitry and one or more mobile devices, the one or more processors configured to execute a set of program instructions configured to cause the one or more processors to:
• receive a benchmark elevation value input from a user interface of the one or more mobile devices;
• receive, from the detection circuitry, one or more detection signals generated by the incident laser beam when the sensor rod assembly is positioned at the benchmark elevation;
• receive a benchmark elevation calibration indication from the user interface;
• store a parameter indicative of at least one of a height or elevation of the incident laser beam measured during the benchmark elevation calibration;
• receive a target elevation value input from the user interface;
• calculate a target laser height based on the stored parameter indicative of at least one of the height or elevation of the incident laser beam during the benchmark elevation calibration and the inputted target elevation value;
• and
• display, on the user interface, one or more indicators for rod height adjustment of the sensor rod assembly to achieve the target elevation.