Metal Detector is an Amazing tool that uses magnetic sensor to find the metal surrounding you. The app also includes Compass, Digital Ruler and Protractor. Metal Detector app has four main features: Metal Detector: Turns your cell phone into a real metal detector. Detect precious metals using your own phone anywhere anytime. Earth's Magnetic Field ranges from 30 to 60 µT. Any Other measurement is an indication of unusual metal activity. As soon as you launch the app, Metal detector reading is shown to your on the screen. Are you going on hunt to find gold, precious metals on beach or mountains? This may be the right tool for you. Metal Detectors can be used as emf detector and emf sensor. The detector is electromagnetic field detector to detect metal and detect EMF reader. The metal detector meter in the app can also be used as EMF Meter. Compass: Simple and accurate compass that is easy to use. Great for outdoor, camping, and road trips. Use it free anytime you want. Digital Ruler: Digital ruler to measure the length in Millimeters and Centimeters. Digital ruler is the best tape measure. Protractor: Protractor to measure angles quickly and easily. Measure angles with elegant Protractor design.