Check the listing for details. Large Electromatic AC And DC Voltage Tester. Condition: Used. Listed at 39.99 USD. Missing some testing wires. The Large Electromatic AC and DC Voltage Tester is a reliable and versatile tool designed for industrial use. With its brand reputation for quality, this tester is capable of measuring both AC and DC voltages accurately. Its large size ensures easy readability and precise measurement results, making it a valuable asset for professionals in various industries looking to ensure the safety and functionality of electrical systems.