Sperry Instruments, Heavy Duty Voltage Tester, With Solenoid Indication, Measures Voltage From 120-600 Vac/DC, Solenoid Circuit Vibrates When Voltage Is Present, Analog Scale Indicates Voltage Level, Snap In Probes For Convenient 1 Hand Operation, 36" Flexible Leads, Soft Grip Contoured Design, Hi Impact ABS Housing,Carded.