Detects ferrous metals, non-ferrous metals up to 70mm and live cables up to 50mm. Quick and easy results with LED traffic light system and warning sounds to indicate where drilling should be avoided. Supplied with 3 x AAA batteries Quick and easy results - The Bosch Truvo detector is the simple solution for scanning walls and ceilings to locate metal objects or live cables. That makes for safer drilling when hanging up pictures or installing lights. An LED traffic light system and warning sound indicate spots where drilling should be avoided. For further convenience, dedicated LEDs with metal and live-wire icons show specifically what the detector has found. A single on-off button and automatic calibration ensure direct start-up for scanning tasks. A language-neutral quick start guide with simple graphics is included to help with correct handling of the tool, ensuring more accurate results. Bosch Truvo Digital Detector Quick and easy results – scan walls and ceilings quickly with the Truvo detector. Locate metal objects and single-phase live cables easily for increased user protection when drilling holes, hanging up pictures, or installing lights. The LED traffic light system and warning tones indicate places where drilling should not be carried out, and the single-button operating concept makes it easy to handle. Bosch-Home-and-Garden-Installation-Testers-618427-Bosch-DIY-0603681205-Bosch-Home-and-Garden-Truvo-is-an-electrical-cable-detector-useful-for-safely-identifying-live-wires-This-cable-finder-tool-is-compact-and-easy-to-operate-designed-for-everyday-DIY-tasks-It-is-ideal-for-preventing-hazards-when-drilling-or-nailing-into-walls-Bosch-0603681205-Truvo-Detector-Easy-Use-LED-Detects-Metal-Wires