Gardner Bender Dual And Solenoid Indication Voltage Tester is a reliable tool designed to test polarity and voltages ranging from 120 to 600V AC/DC with ease. It features dual voltage indication through solenoid vibration sensing and an electronic neon visual indicator, which clearly shows positive or negative polarity of DC using a neon lamp. The tester includes retractable spring-loaded prod shrouds that protect the metal tips and lock back for convenient use. Its compact design makes it easy to carry, and the case doubles as a prod holder for one-handed operation. This voltage tester is ETL listed and comes with a one-year limited warranty, making it a dependable choice for electrical testing needs. Model Number: GVT-392