Quick and easy results – The 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.