Check the listing for details. Zircon StudSensor HD55 Metal & Wood Stud Finder with Deep Scan. Color: Yellow, Condition: New. Listed at 18.95 USD. The StudSensor HD55 deep-scanning stud finder features an enhanced LCD display, with Target Spotlight, that illuminates on-screen when you’ve 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.StudScan mode locates the edges of wood or metal studs up to 3/4 in. (19 mm) DZircon 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 requirementsEnhanced LCD display with target spotlight indicates approaching stud edge and illuminates when stud edge is detectedZircon’s patented over-the-stud indication alerts user to start the scan in a new location if scanning begins over a studSpotLite pointer shines an arrow-shaped light on the wall to clearly indicate the edge of the studTranslucent base and illuminated V-marker groove for more accurate marking of stud edge locationGreat solution for all your detection need