Check the listing for details. Stud Sensor Finder Finds Wood Edges Metal Studs Deep Scan Wire Warning Detection. Condition: New. Listed at 23.90 USD. The StudSensor HD55 deep-scanning stud finder features an enhanced LCD display, with Target Spotlight, that illuminates on-screen when youve found the edge of a stud. Select from 2 stud scan modes to find the edges of wood and metal studs to securely anchor mirrors, shelves, and cabinets to the wall while also avoiding live AC electrical wiring. StudScan mode locates the edges of wood or metal studs up to 3/4 in. (19 mm) D WireWarning detection indicates the presence of live, unshielded AC electrical wiring up to 2 in. (51 mm) D Zircon recommends the use of a brand new 9-Volt battery (sold separately), check the battery expiration date upon battery installation and replace battery periodically due to the LCD power requirements Enhanced LCD display with target spotlight indicates approaching stud edge and illuminates when stud edge is detected Zircons patented over-the-stud indication alerts user to start the scan in a new location if scanning begins over a stud SpotLite pointer shines an arrow-shaped light on the wall to clearly indicate the edge of the stud Translucent base and illuminated V-marker groove for more accurate marking of stud edge location Great solution for all your detection need Dimensions Product Depth (in.) 1.76 Product Height (in.) 6.66 Product Width (in.) 2.8 Details Audio alert Yes Batteries Included No Battery Type Required 9-volt Detects metal Yes Detects voltage Yes Digital Display Yes Features Electronic, Hand-Held, No Additional Features Hand Tool Type Stud Sensor Laser level included No Maximum wall thickness (in.) 1.5 Number of Batteries Required 1 Reconditioned No Tools Product Type Hand Tool