"color as shownSize19cm*8.3cm*5cmWeight: 200 gramsFour-in-one depth detection function- The wall nail finder wall scanner includes four different scanning modes, namely, wall stud scanning, deep mode, metal scanning and AC scanning.Backlit LCD display and audible warning- The multifunctional wall scanner sensor has a backlit graphic LCD display, which can display many indices during the detecting process, such as detecting mode, signal strength, auto calibration, battery indication, sound warning, etc.Ergonomics - the tool has a soft grip coating, providing a firm and pleasant grip to guarantee safe and comfortable handling, avoiding any slipping. utils.Auto Calibration - After the stud finder finds the material, the LCD screen shows the direction and the intensity of the buzzer indicates if you are close to the target. With auto-calibration function, put it flat on the wall, turn on the power button, then press the ?scan? to start the calibration. When the ?beep? and the screen display disappear, calibration is complete. The edge of the stud will flash and beep.Ease of use- the device features an LCD screen displaying the results clearly and prominently for easy and intuitive reading. It beeps to warn the user when a live electrical cable is located."