The Bosch GMS 120 Professional Detector provides simple detection for safer work. Automatic calibration helps you to avoid application errors, making it ideal for confident work. From wooden substructures in drywall (3.8cm) and live cables (5cm) to non-ferrous (8cm) and ferrous metal (12 cm) , this versatile tool detects a variety of materials for deep scans up to 12cm. The GMS 120 Professional also includes a Centre Finder for a pinpoint indication of the centre of detected objects along with a reading of material properties. Its luminous three-colour LED ring clearly indicates whether or not objects are detected and features a marking hole within the ring for direct notation of each scanning result. This robust tool has rubber protection, a shockproof housing, and a water and dust protection class of IP54. Specifications: Max. Detection Depth: 120mm. Max. Magnetic Metal Detection Depth: 120mm. Max. Non-magnetic Metal Detection Depth: 80mm. Max. Live Cable Detection Depth: 50mm. Max. Wooden Substructures Detection Depth: 38mm. Dust and Splash Protection: IP54. Power Supply: 1 x 9 V 6LR61 (supplied) Automatic Deactivation: 5 minutes approx. Weight: 0.27kg.