The StudSensor L50 features a patented pinch grip design and rubber grips molded specifically to fit comfortably in the palm of your hand for a secure hold at any angle. Use to find studs to securely hang pictures, mirrors, shelves, and more! Find the edges of wood or metal studs and joists up to 1-1/2-in deep to securely hang pictures, mirrors, shelves, cabinets, and more WireWarning Detection indicates the presence of hot electrical wiring Easy-to-read display screen SpotLite Pointer shines a bright arrow to clearly indicate stud edge Patented "over-the-stud" indicator alerts you to scan in a new location should scanning begin over a stud A brand new 9V alkaline battery is required for proper operation Color/Finish Family: Yellow Series Name: StudSensor L50 Stud Finder with WireWarning Battery Size: PP3 (9V) Depth (Inches): 1.69 Length (Inches): 6.66 Scan Depth (Inches): 1.5 Width (Inches): 2.8 Automatic Operation: No Battery Charger Included: No Battery Included: No Battery Required: Yes Case Included: No Detects Live Wires: Yes Level Included: No Magnetic: No Material: Plastic Object Detection: Metal and wood stud Sound Indicator: Yes Warranty: Limited lifetime CA Residents: Prop 65 Warning(s): No UNSPSC: 27111800