A non-contact measurement system, comprising: a housing comprising a front end; a voltage sensor positioned proximate the front end of the housing that, in operation, senses a voltage in an insulated wire without galvanically contacting the insulated wire; a current sensor positioned proximate the front end of the housing that, in operation, senses a current in the insulated wire without galvanically contacting the insulated wire; at least one processor positioned in the housing, the at least one processor operatively coupled to the voltage sensor and the current sensor, wherein in operation the at least one processor: receives a voltage sensor signal from the voltage sensor obtained by the voltage sensor during a measurement time interval, the voltage sensor signal indicative of the voltage in the insulated wire; receives a current sensor signal from the current sensor obtained by the current sensor during the measurement time interval, the current sensor signal indicative of the current in the insulated wire; and determines at least one alternating current, AC, electrical parameter based at least in part on the received voltage sensor signal and current sensor signal, the at least one AC electrical parameter including at least one of power, phase, frequency, harmonics, or energy; an alignment feedback sensor operatively coupled to the at least one processor and positioned proximate the front end of the housing, in operation the alignment feedback sensor generates an alignment feedback sensor signal indicative of a present alignment of the insulated wire with respect to the voltage sensor and the current sensor; and an indicator device operatively coupled to the at least one processor, wherein in operation the at least one processor receives the alignment feedback sensor signal from the alignment feedback sensor, and causes the indicator device to provide an alignment indication to a user of the non-contact measurement system based at least in part on the received alignment feedback sensor signal. a housing comprising a front end; a voltage sensor positioned proximate the front end of the housing that, in operation, senses a voltage in an insulated wire without galvanically contacting the insulated wire; a current sensor positioned proximate the front end of the housing that, in operation, senses a current in the insulated wire without galvanically contacting the insulated wire; at least one processor positioned in the housing, the at least one processor operatively coupled to the voltage sensor and the current sensor, wherein in operation the at least one processor: receives a voltage sensor signal from the voltage sensor obtained by the voltage sensor during a measurement time interval, the voltage sensor signal indicative of the voltage in the insulated wire; receives a current sensor signal from the current sensor obtained by the current sensor during the measurement time interval, the current sensor signal indicative of the current in the insulated wire; and determines at least one alternating current, AC, electrical parameter based at least in part on the received voltage sensor signal and current sensor signal, the at least one AC electrical parameter including at least one of power, phase, frequency, harmonics, or energy; receives a voltage sensor signal from the voltage sensor obtained by the voltage sensor during a measurement time interval, the voltage sensor signal indicative of the voltage in the insulated wire; receives a current sensor signal from the current sensor obtained by the current sensor during the measurement time interval, the current sensor signal indicative of the current in the insulated wire; and determines at least one alternating current, AC, electrical parameter based at least in part on the received voltage sensor signal and current sensor signal, the at least one AC electrical parameter including at least one of power, phase, frequency, harmonics, or energy; an alignment feedback sensor operatively coupled to the at least one processor and positioned proximate the front end of the housing, in operation the alignment feedback sensor generates an alignment feedback sensor signal indicative of a present alignment of the insulated wire with respect to the voltage sensor and the current sensor; and an indicator device operatively coupled to the at least one processor, wherein in operation the at least one processor receives the alignment feedback sensor signal from the alignment feedback sensor, and causes the indicator device to provide an alignment indication to a user of the non-contact measurement system based at least in part on the received alignment feedback sensor signal.