Zircon-Studsensor-e 50-Zircon-63976-The-Stud Sensor™-e 50-quickly-&-easily-locates-the-edges-of-wood-&-metal-studs-&-joists-behind-walls-floors-&-ceilings-Its-easy-to-read-display-screen-indicates-stud-edges-the-patented-Spot Lite-Pointer-shines-a-beam-of-light-on-the-wall-to-identify-the-target-&-Wire Warning-detection-indicates-the-presence-of-live-AC-voltage-Its-new-patent-pending-pinch-grip-&-contoured-shape-provide-an-easy-secure-hold-in-either-h&-at-any-angle-Lo