Zircon 61897 / 58051 Advanced Stud Sensor

Patented trucal instant calibration, scans through drywall up to 3/4 inch, audio tone signals stud edges Locates wood and metal studs up to 3/4 inches behind drywall. The"SpotLite Pointing System" shines a beam of light on the wall to identify the target. Red LEDs light up every time a stud edge is approached. SpotLite Pointing System, an audio alert, and a green LED signals when the stud edge is reached. Should scanning begin over a stud, the over-the-stud indicator alerts the user to start the scan in a new location. TruCal technology calibrates to any wall's density and a steady green LED TruCal light alerts t he user.