Wall Scanner Stud finder uses your devices material like magnetic sensor to measure the intensity of magnetic field values from electrical wires and metallic pipes and turns your phone to a high efficiency stud detector. Data is displayed in a chart with the unite of µT (micro Testla). The nature magnetic field ranges from 23 to 63 µT. Any higher or low measurement is an indication of a stud, wire, pipe in the wall.
the accuracy Depends on of the sensor of your phone, quickly locate studs wood metal AC wires and deeply embedded objects behind floor, ceiling, wall.

Whether you are a professional, homeowner or a DIY enthusiast, you can find great use in this electronic stud scanner.

HOW TO USE IT :

1-Calibrate the sensor before every scan
press start scan button and tilt your phone in the shape of 8 to calibrate. Wait for the cart graph to disappeared to confirm calibration has completed.

2-Scan the wall
Hold your phone flat, then move along the wall slowly, if shake or lift the scanner accidentally, the sensor needs to be re-calibrate.

3-Find the location of the stud
When the signal chart is full and the beep alarm is loudest, it means you have found the center of an object. Mark it with your pencil.

Note that Not all phones have magnetic sensor. Please check it your phone