NEW Features:1.3-in-1 Multi-function detector with four modes: Stud， metal， deep and AC.2.Stud detection mode locates the edges and center of wood or beam in normal walls up to 0.75 inch (19 mm) deep.3.Metal detection mode detects metal， such as copper， aluminum and iron pipe， up to 1.18 inches (30 mm) deep.4.Deep detection mode doubles the scanning wood/beam and metal parts located particularly deep within the wall， detection depth up to 1.50 inches (38 mm).5.AC detection mode finds and traces unshielded eletrical lines， up to 1.97 inches (50 mm) deep.6.Easy-to-read LCD display indicates when a stud edge is approached. Via a series of arrowheads on the LCD and audio(buzzer). Lightning symbol shows the wirewarning. Easy-to-use， powered by 1*9V battery(not included).Specification:Stud detection depth: 0.75 inch (19 mm).Metal detection depth: 1.18 inches (30 mm).Deep detection depth: 1.50 inches (38 mm).AC detection depth: 1.97 inches (50 mm).Operating temperatue/humidity: 32℉ to 122℉(0℃ to 50℃); 20 ~ 90%.Storage temperature/humidity: 14℉ to 140℉(-10℃ to 60℃); 15 ~ 95%.Temperature measuring range: 14℉〜104℉(-10℃〜40℃)Power supply: 1*9V battery(not included).Auto OFF: switches off if you do not press any key for about 60 seconds.LCD size:43*33mm.Package includes:1 x Excelvan multi-function detector1 x User manualhttp://contestimg.wish.com/api/image/rating?name=b426702c7b8911e68b9c065f903a9ac5.jpg&w=1000&h=1000&m=0&t=0