STANLEY FMHT0-77407 Stud Sensor for detecting AC wires Wood and Metal Studs with OnePass™ centre-find technologyBrandStanleyBatteries Required?YesPower SourceBattery PoweredItem Weight0.23 KilogramsProduct Dimensions24.6L x 14W x 3.8H CentimetersAdjustable LengthNoInternational Protection RatingIP541Display TypeLCDSee lessAbout this itemWood or Metal Studs Up to 1-1/2” (38 mm) through drywall Live AC Wires (120 volts AC) Up to 2” (50 mm) through drywall METAL SCAN Mode Up to 3” (76 mm) through drywallSequential LEDs and audible beeps indicate readingMarking channel with LED identifies target and makes marking surfaces easy and accurateBacklit LCD screen to display sensor's readying, even in low light conditionsOne Pass center-find technology to locate stud centers