Intellitools Digital Stud Sensor detects and differentiates wood, metal and live wire through many wall thicknesses and materials. One-step calibration takes one or two seconds. Display with easy-to-read icons tells user type of material detected. Wood studs are detected through 11/2 in. of drywall, and metal or pipes are detected through 3 in. of concrete. Warranty: Replacement if defective. Supply: Retail. Contact: (800) 782-6539.
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