Solenoid voltage tester tests polarity and 120/600V AC/DC. Easy-to-read voltages. Dual voltage indication: Solenoid vibration sensing and electronic neon visual indication. Positive or negative polarity of DC indicated by neon lamp. Retractable spring-loaded prod shrouds protect metal tips and lock back out of the way for easy use. Compact and easy to carry. Case serves as prod holder for 1-hand operation. UL listed. 1 year limited warranty. 1 per card. No. GVT-392: Type: Contact, Dual and Solenoid Indication, AC Voltage: 120V to 480V AC, DC Voltage: 120V to 480V DC, Powered By: Item being tested-no battery, Lead Length: 24", UL Listed: No, ETL Listed: Yes, Pkg Qty: 1, Package Type: Clamshell