Mastech MS6908 5-in-1 Stud Finder, Metal Detector, Non-contact AC Voltage Detector, Receptacle & GFCI Tester with Flashlight 5-in-1 stud finder + metal detector + non-contact AC voltage detector + receptacle & GFCI tester Sound and LCD Dynamic Indications Low Battery Indicator In conformance with CE safety standard, CAT II 600V and RoHS One year manufacturers warranty