Solenoid Voltage Tester tests AC/DC Voltage from 120 - 480 V and DC Polarity. Offers dual voltage indication with a solenoid vibration and visual neon light bulb. Vibration indicates voltage while neon light indicates DC polarity. Built-in slots in probe housing hold probes for one-hand testing and storage. 4 ft reach from probe to probe with probes unlocked. High-impact, dual insulated, case stands up to rugged service. Testing applications include: outlets, panels, light fixtures, switches, circuit breakers and extension cords.