A metal detector is an electronic instrument that detects the presence of metal. Metal detectors are used for security, archaeology, and treasure hunting. The best metal detector under $300 is a great choice for beginners who are looking for a quality metal detector that is affordable.
Metal detectors work by sending out a magnetic field. When the magnetic field encounters metal, it creates an electrical current. The electrical current is then detected by the metal detector and the user is alerted to the presence of metal.
