This Wireless Mains Voltage Tester with seven segment Display Circuit Diagram is an electronic device used to measure mains voltage. It consists of a circuit consisting of a transmitter and receiver that measures the AC voltage and sends it over a wireless connection to the display. The display consists of seven separate LCD segments that show an accurate reading of the mains voltage. This device is a great way to quickly interpret circuit measurement readings and prevent any potential damage due to high voltages. This Wireless Mains Voltage Tester with seven segment Display Circuit Diagram project uses alternating current flowing through a live wire to measure voltage levels. An antenna located near the wire is tuned to receive electromagnetic waves emanating from it and then transfer the signal to a sensing circuit. The circuit has been designed to process the signal and display it on a seven-segment display. Easily recreate similar elaborated diagrams using the free template and systems provided by EdrawMax.