This unit is a 3 in 1 metal/voltage/stud detector. It uses electronic signals to locate the exact position of studs, ceiling joist AC wires and metal through drywall, concrete and other common wall materials. Once the edge of a stud has been detected, it emits audio and visual signals (LCD display) that allow you to easily pinpoint its center position. This unit is an ideal tool for DIY fans, professional electrician and users in decoration field.

Features:
Simulation bar indicate stud edges.
An advanced detector with LCD screen and sound beep indicator, ideal for DIY decoration.
Lightweight, ergonomics and handy design, convenient to have around the home, office.
Three modes are optional: it can be used to detect wood and metal stud, metal and AC wire.
Locates studs easily behind walls, floor and ceilings up to 18mm(0.71in) deep.
Locates hidden metal objects easily up to 30mm(1.18in) deep.
Detect the unshielded live AC wire up to 50mm(2in).
Auto calibration function.
Low battery indication and auto power off after usage.

Specifications:
Battery: 9V DC (not included)
Detecting depth:
Wood 30 * 30mm: ≤18mm
Iron pipe Φ25mm: ≤ 30mm
AC live wires: AC 90-250V live wire (5cm)
Frequency: 50-60Hz
Item size: 15.3 * 7.5 * 2cm / 6.0 * 3.0 * 0.8in
Item weight: 125g / 4.4oz
Package size: 21.7 * 12 * 2.5cm / 8.5 * 4.7 * 1.0in
Package weight: 147g / 5.2oz

Note:
The unit needed to be calibrated before detecting the object.
Detection depth and edge detection can vary due to moisture content of materials, wall texture, paint, etc.
If the unit will not be used for an extended period of time, take out the battery from the unit.

Package list:
1 * Metal Detector
1 * User Manual