Various techniques are disclosed for providing electrical current and/or voltage sensor probes or tags integrated with measurement circuitry. For example, an electrical sensor is provided that includes a probe adapted to be arranged to at least partially encircle a conductor to be measured, wherein the probe has a proximal end and a distal end, the proximal end terminating in a base portion that houses measurement circuitry. The base portion may also include electrical components suitable for displaying, wirelessly transmitting, and/or otherwise conveying the measured electrical parameters. In some embodiments, the distal end of the probe may be removably received by the base portion, such that the probe forms a loop encircling the conductor when measuring it. In other embodiments, the probe may resiliently clip on to the conductor. In another example, an electrical sensor includes an attachable tag that can be mounted to the conductor to be measured.