Product Info Catalog Tools Electrical Tools Testers 120-480AC Solenoid Voltage Tester 120-480AC Solenoid Voltage Tester Request a Quote UPC: 32076068394 Manufacturer: Gardner Bender Inc SKU: 766222 Model Number: GVT-392 Solenoid Voltage Tester, Solenoid Activated Voltage Indicator With Vibration Alert, 120V To 480V AC Voltage Range & 120V To 240V DC Voltage Range.