aom 4 in 1 Multi-Scanner Wall Stud Finder， Electronic StudSensor with Sound Warning Detection for Live AC Wire， Metal， Studs， Wood， Deep[Product Information]- 4-IN-1 wall stud finder: Quickly locates edges of the pipe， metal， rebars， joists，wooden beams，wood and live AC wire inside the wall， floors and ceilings， it keeps you from damaging unforeseen objects that are hiding behind your walls.
- Stud sensor Scanner depth:Stud mode detects the edges and center of wood beam in wall up to 0.75 inches; Metal mode detects metal， such as pipe ， rebar， aluminum and copper ，up to 1.18 inches ; AC mode detects voltage and live electrical lines up to 1.96 inches; Deep mode detects beams wood and metal parts located particularly deep up to 1.49 inches
- LCD display: Easy to read LCD and perfect to use for private households. Battery:1x9V (Battery is not included).
- How to use stud sensor: Place the stud finder flat on wall first. Then press and hold the button at the left side of the device till the unit sounds a short beep “BI BI”， next still hold the “PUSH” button ， move the stud finder on the desired surface to scan. Note: If you can not scan the object from left to right ， please try to scan up and down.
- Please note that don’t use it to detect alternating voltage in non-insulated or exposed line. If you change a NEW BATTERY and it still don't work， it maybe the product has not been completely discharged. So please install the battery in reverse direction for 3 SECONDS， and repeat this 3 times ，then correct the installation.
