Holulo Scanner Electronic Detector Detection Review

【5-in-1Wall Scanner】Holulo Stud Finder with 5 scanning modes, including 1/2 inch(13 cm) scan mode locates the center and edges of wood; medium scan locates the center and edges of wood up to 1 inch(25 mm) deep; Deep scan locates the center and edges of wood up to 1.5 inch (38 mm) deep; Metal scan detects metal up to 2.36 inch(60 mm) deep; AC scan detects live up to 2 inch(51 mm) deep. 【Function】It can detect the center position of the woods in the walls of wooden boards and gypsum boards, and can quickly find metals, studs, joists, pipes, and AC wires behind various wall floors and ceilings, except for cement board walls,Whether you are a professional, homeowner or a DIY enthusiast, you can find great use in this electronic stud scanner. 【Precise psitioning】When you are looking for the wood location,hold the tool straight up and down , parallel to the studs ,Stud Finder with automatic calibration function, when you approach the target, there will be an arrow on the LCD screen to indicate the position of the target, move in the direction of the screen arrow to accurately locate. 【Easy to use】First,press ON/FF to Boot up,then press mode switch button,Slowly slide the Wall Scanner on the surface of the test object, the LCD screen lights up and there are indicating arrows to guide you to slide. When you locate the center of the stud, the signal strength indicator will be full and the buzzer will sound,Just write it down at the marking point; automatically after 3min Turn off the power without any action.Need 2*9V 6F22 battery(Including). 【Digital LCD Display】The wall detector with a graphical LCD backlight, which can indicate accurate directions and show detection mode, signal strength, center pointing, low battery indication.With LCD backlighting, it provides a clear appearance even in low light conditions, showing the exact location of the detected materials and materials. Audio indication with a beep detector.