The AC... ... more Product Info Santronics AC-EZ-5PACK Non-Contact Voltage and Current Detectors - Style (voltage): Pen, Voltage Range (voltage detector AC Voltage Sensor - 50-1000 VAC The AC Sensor is a hand held device for determining the presence or absence of 50-1000 volts AC in insulated wires, wall receptacles, fuses, junction boxes, switches, and other voltage carrying electrical systems.