set of voltmeter and ammeter. voltmeter is physical device for measuring the voltage in an electrical circuit. appliances

voltmeter ammeter icon physics electric circuit current potential instrument set electrical appliances amplifier indicator tester measure power scale test design measurer ampere accurate education watt tool number energy display panel device pointer data laboratory chronometer measurement voltage equipment electrician volt gauge science dial vector multimeters unit electromagnet analogue electricity physical measuring amperes volts ammeter circuit