4-in-1 Multifunctional Stud Finder with HD LCD Screen, Wall Scanner for Metal, Pipes, Wood, Power Lines, AC Voltage Detector

1. Wide Detection Range - The maximum detection range for metal parts is 3 inches (3 cm), and for bolts, 5 cm (2 cm). It easily locates the center and edges, accurately pinpointing metal pipes, live wire studs, wooden frames, and beams hidden behind walls, floors, or ceilings.

2. Center Locator: A warning flag with an AC wire icon appears on the LCD screen when live wires are being monitored. Three detection modes indicate intensity, proximity to wood studs, and center. The highest column is the center, and an audible signal will alert you when you have reached the target.

3. Calibration - Before detecting, please hold the scan button for 1-2 seconds to calibrate the probe. A beep will alert you when your work is complete.

You may need to recalibrate your device if the button was accidentally unlocked initially, or if you feel it's necessary during the process. 4. Excellent screen backlight - The LCD backlight provides a clear image even in low-light conditions and displays the detection mode. When the battery is low, the audio display alerts you with a beep.