10 Best Metal Detectors: Reviews and Buying Guide

Whether on the beach of California, on the North Sea coast or in the middle of Lake Garda, you want a true treasure hunt and are therefore interested in the right metal detector? Dreamers, discoverers, and adventurers get their money’s worth with their metal detector even in their childhood. Maybe you too can discover a lost gold necklace on the beach, a few abandoned coins in the city park or even a real Reichsmark. After all, modern metal detectors are so easy to use that you do not have to be a trained archaeologist. A bit of curiosity and the right tools are enough.

Top 10 Metal Detectors

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What is a metal detector?

A metal detector is also called a metal detector or a metal probe. This is a device that can be used both on land and underwater to locate the following targets:

  • The most diverse types of metals (gold, silver, copper, bronze, iron, etc.)
  • piping
  • Electric conductors

How is a metal detector constructed?

A metal detector uses an electronic circuit powered by 9V or AA batteries. The AC search coil is another important part of these search devices. This search coil should guarantee the widest possible magnetic field. The flat or stretched search coils may have the following shape:

  • Plate
  • ring
  • Double D (coreless)
  • cylinder

A flat coil shape is recommended when scanning people or flat surfaces, such as all types of floors or walls. In contrast, a metal detector with an elongated cylindrical coil is ideally suited for the search for metal-containing objects in cavities, such as rock fissures or well shafts. There is a connection between the coil and the electronics, these lines usually running along the linkage. Also, an armrest is often present in many metal detectors in terms of even greater user comfort.

The history of the metal detector

The first metal detector dates back to 1870. From this point on, the development of metal detectors began. At first, metal detectors were not intended primarily for treasure hunting, but rather for mining. The technology of the first metal finder went back to a physicist named Heinrich Wilhelm Dove. He developed the so-called induction-balance system in the 19th century. However, this technology meant that the first metal seekers were only very limited operational and were also real power guzzlers.

It should be some time before the modern metal detectors were in circulation. This was the case from the 1930s. A technician named Gerhard Fischer made a decisive contribution to the further development of the former metal and gold prospectors. He realized that radio waves could be distracted by metal parts (as well as rocks containing ores). The distraction of these waves could, therefore, be beneficial for the metal detector treasure hunt. Fischer was able to register the first patent for a metal detector of this kind in 1937.

How does a metal detector work?

The classification of common metal detectors is dependent on the measurement method, which is used. If you want to buy a metal detector, you are faced with the following choices:

  • Pulse
  • AC excitation

Whether it is a Garrett Metal Detector or another reputed manufacturer’s model, the coil sends out magnetic field pulses at regular intervals in the pulse measurement method. This causes eddy currents to be generated in the metallic target objects that are in sufficient proximity. The eddy currents can be perceived via the receiver coil as a measurable voltage. The eddy current response of the finds differs depending on the size and metal type of the find. Thus, this technology offers targeted differentiation options, which provide information about the condition of the find before the excavation.

In AC technology, on the other hand, the AC is generated directly in the coil of the metal detector. When the signal emitted by the metal detector now encounters a metallic find, the signal changes accordingly. Both the phase position and the amplitude change. These changes can be measured so that even with the help of this technology, a distinction can again be made between the different metallic objects. This technology can also be paired with additional transmit frequencies to show even more information about the search objects – before you dig them up or spy on them to the naked eye.

Where can a metal detector be used? – Practical application examples

Whether a metal probe is to be used at the airport, as a gold detector or on a construction site, the application possibilities are actually extremely versatile. At the airport, a metal detector is used for personal control. This is to ensure that malefactors can not smuggle hidden weapons aboard an aircraft. Even home improvement often rely on a metal detector. Finally, this device can indicate the position of metallic pipes as well as pipes in the walls and on the floor. This is important so as not to accidentally damage these pipes and conduits through a hole. The following uses are also provided for modern metal detectors:

  1. So that the pharmaceutical and food industry can detect possible metal fragments in their products ( food or medicines )
  2. For the treasure hunt – for example, to find coins, lost jewelry or historical ammunition
  3. To eliminate munitions – for example, duds, land mines, ammunition and the like
  4. As an important tool in the daily work of archaeologists
  5. For machine protection – so that tree trunks or plastic granulate can be inspected for possible metal parts which could damage the machines before further processing

Buy a metal detector – what are the advantages and disadvantages of this technology?

Before you look around for the model that has earned the title of “Best Metal Detector” honestly, may ask the question of what advantages and disadvantages such a metal or oldsuchgerät ever goes along. Many people want to buy a metal probe because they just feel like a little adventure. In the park, on the beach or in the woods to find small treasures, such as valuable jewelry that someone has lost there, just a lot of fun.

What is a probe?

If you want to build a metal detector yourself, the term ” probe ” will certainly say something. Finally, a probe-giver is the person who uses a metal detector to search for metal objects in the ground. The appropriate verb is known in professional circles as ” condemn “. However, the so-called pacifiers are not always and everywhere allowed. The question “metal detector – what is allowed?” Has to be asked by probe-givers mainly because of the rights and interests of the following instances:

  • landowner
  • Conservation authority
  • Conservation authority

Anyone who owns the reason for a find is first entitled to the find. The nature conservation authority may also have a say in the matter, as the probe may be traveling in a nature reserve. Monument protection requirements can also lead to the discovery of a metallic find item, but subsequently not to be salvaged. There are now hundreds of thousands of probe-goers across Europe. They have specialized in one of the following areas:

  • antique search
  • Order search initiated by a public or private client
  • The rescue of fallen soldiers (over 800,000 fallen German soldiers are still missing)
  • gold search
  • Treasure hunt underwater with a special underwater metal detector
  • Militaria search to find legacies of the two world wars
  • Search for meteorites
  • Modern Times search
  • Classic treasure hunt for hidden or lost treasures
  • Search for underground (for example after tunnels)
  • Beach search, to find coins, jewelry, and similar valuables

In addition to a metal detector, a probe detector also requires the necessary tools to dig up the treasures. Sieves, spades, and pimples should always be part of the game. A GPS system is also suitable in practice. This allows the coordinates of the locality to be saved exactly. With a smartphone, notes can be made to the locality and the site can be photographically documented. It may also require a permit from the preservation or nature conservation authority.

Analog or digital metal detector – what to consider?

Whatever metal detector is used for gold or beach search, a distinction is made between digital and analog devices. Each of these technologies goes hand in hand with advantages and disadvantages. A metal detector recommendation many passionate treasure hunters, especially for a digital device pronounce because so much more accurate measurements are possible. At the same time, these devices are also very heavy because of their precise measurement technologies. The many different setting options also ensure that a distinction between different materials is possible. The increased power consumption is to be regarded as a further disadvantage of these devices.

What does a metal detector need?

Which metal detector is the best choice for your beach search or treasure hunt depends on local conditions as well as your personal expectations? The more extensive the setting options of a metal detector, the more money you will have to pay for such a device. If you want to build a metal detector, you can fall back on a metal detector kit. However, this is usually not the subtle distinctions of professional equipment possible. A good or very good metal detector should meet the following requirements:

  • As little as possible prone to failure
  • Ideally, a maximum detection depth of several meters
  • Differentiation between different types of metals thanks to different search modes
  • Easy to use
  • Comfortable to wear
  • Clear display/beeps to let the user know exactly what the found items are

Metal detector buying advice – what should you pay attention to?

In any case, your metal detector should match your user behavior. Most metal probes are waterproof. However, this is not the case with all devices. If you also want to go on a treasure hunt in a river bed or on the beach, it is essential to pay attention to the appropriate equipment suitability. The following criteria are also important:

  • Which frequency your metal detector uses and how precisely it can be adjusted
  • What depth is the maximum possible in the search
  • The dead weight of the device
  • The setting options – different search modes, incognito search, etc.
  • Whether a headphone jack is available
  • The price – also in the price comparison with the metal detectors of other brands
  • The manufacturer
  • The power supply – mostly AA or 9V batteries
  • The scope of delivery – including the necessary batteries or a handy shovel?

Popular metal detector brands

Bosch, Black + Decker, Cscope and Dema are just some of the well-known manufacturers you can choose between. Also available are metal detectors from Eurolite, Garrett, Kopp, and Laserliner. Mastech, McCheck, and McVoice are also among the brands that matter. Also, Perel, REV-Ritter, and Silverline join Velleman and Whites in the market for metal detectors.

How much is a metal detector?

The prices for the popular metal detectors on the market will vary greatly in 2018. Children’s metal detectors are often available for as little as $ 100. Cheap metal detectors for adult treasure hunters usually cost between 50 and 200 euros. If you are interested in a high-quality metal probe with a much greater depth of measurement of up to two meters, however, you will need to invest upwards of 500 euros in the purchase of such a device.

How does a metal detector work at the airport?

Metal detectors are used at almost every airport in the world. Mostly, the passenger is prompted to first discard all metal objects before going through the metal detector in the form of a goal frame. This device generates an electromagnetic field. If there is a metallic object on the passenger’s body, this field changes. This change triggers a beep. As soon as the unit sounds the alarm, security personnel is informed that additional checks are required.

At the latest then the passenger is usually asked to take off his shoes so that they can be checked together with the hand luggage. If the door frame metal detector has struck, the passengers are scanned by the airport person. In addition, a hand-held metal detector is used. These metal detectors work on the same principle as the larger door frame devices.

How does a metal detector work in the cell phone?

So-called Metal Detector Apps are now also available for the smartphone. These apps have, if they actually work, quite their Maison. Finally, the app can help the home improvement in the search for metallic lines. Most apps of this type are based on a magnetic field measurement. Not all metals are magnetic. Therefore, this type of metal detector search is only useful if iron, cobalt or nickel to be detected. You can not find gold or silver with it.


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