Features:
<br />1: 4-in-1 Multi-function detector with four modes: Stud, metal, deep and AC.
<br />2: Stud detection mode locates the edges and center of wood or beam in normal walls up to 0.75 inch (19 mm) deep.
<br />3: Metal detection mode detects metal, such as copper, aluminum and iron pipe, up to 1.18 inches (30 mm) deep.
<br />4: Deep detection mode detects voids which up to 1.50 inches(38mm) deep.
<br />5: AC detection mode only finds eletrical lines which carry 100-240V, 50/60Hz, up to 1.97 inches (50 mm) deep. 
<br />6: Easy-to-read LCD display indicates when stud metal deep or AC electrical wires 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).
<br />Specification:
<br />4 detection modes: Stud, metal, deep and AC.
<br />Stud detection depth 0.75 inch (19 mm).
<br />Metal detection depth 1.18 inches (30 mm).
<br />Deep detection depth  1.50 inches (38 mm).
<br />AC detection depth  1.97 inches (50 mm).
<br />Power supply: 1*9V battery(not included).
<br />Auto OFF: switches off if you do not press any key for about 60 seconds.
<br />Unit size:73*150*35mm 2.87*5.91*1.38 inches).
<br />LCD size:43*33mm.
<br />Weight: approx . 155g
<br />Package includes:
<br />1* Excelvan multi-function detector
<br />1* User manual
<br />Note: 
<br />1:The battery is not included.
<br />2: Please press the  PUSH  button for long time while detecting the stud metal void or AC electrical wires.