A system for mounting a sensor to a power line is provided. The sensor configured to simultaneously measure voltage and current. The system includes a first hot line clamp configured to couple with the power line. A first spacer member is provided having a length and is coupled to the first hot line clamp. A plate is coupled to the sensor and the first spacer member. A current clamp is coupled to the plate and operably coupled between the sensor and the power line. Wherein the first hot line clamp, the first spacer member, the plate and the sensor cooperate in operation to measure the line to ground voltage of the power line. Wherein the current clamp and the sensor cooperate in operation to measure the current of the power line.