Widely used as a top hunting tool, metal detectors offer a wide range of features. Each of the features provides a precise usability to hunting needs. Therefore, understanding the key features of metal detectors is imperative for any aspiring hunter. So, let us roll the dice and gather some insight on the important features of a metal detector.
1. Coil Technology
A coil is one of the significant components of a metal detector. A metal detector sends magnetic field below the surface to magnetize metal objects. For this reason, a coil is crucial to this operation. Usually, all metal detector coils use two different kinds of technologies. Each of them serves different intended purposes. For example – some coils are designed to use in water.
VLF – VLF means “Very Low Frequency.” Almost all types of metal detectors use VLF technology. It brings versatility on board and it can be helpful in using the metal detector in a shallow water or land.
2. Coil Size
The search coil’s diameter is proportionate to the depth of a metal detector’s search. If the coil is bigger, it will produce a big amount of field detection. On the contrary, a smaller coil will generate a small amount of field detection. Besides, the size of the field is equivalent to the size of the detectable objects. Even a large coil can miss a big chunk of metal.
Therefore, the smaller coils (6 inches or less) are suitable for areas where there is fragment of debris or pieces of natural gold. The medium-sized coils (7-9 inches) are ideal for an all-purpose hunting campaign. However, the bigger coils (9 inches or more) are perfect for hunting big objects or caches.
3. Target Identification
All metal detectors include a target ID feature. This feature is responsible for identifying the metal object, helping the user to decide on whether to dig or not dig it up at all. In addition to this help, target ID comes with different categories such as recognizing dimes, copper pennies, pull tabs, quarters, nickel, foil, etc.
It is also useful for finding coins at dumped areas. You can even get a programmed target ID feature in some metal detectors. With this enhancement, you can smoothly disregard some of the objects. Above all, a target ID feature provides a visual cue to the user, enabling the metal detector to a sophisticated tool.
4. Tone ID
You will see some metal detectors emitting audio tones. This emission of audio tones depends on the conductivity of the detected object. For example – some objects made foil, iron, or nickel might generate a low-pitched tone. However, the screw caps or pull-tabs can produce medium-pitched tone.
5. Low Battery Indicator
Since most of the metal detectors operate on 9-volt batteries, it would be great to have a low battery indicator. It will notify the user of any power loss, making the charging process smooth. All professional hunters take extra set of batteries. At the sight of a low battery indicator, they charge their metal detectors to remain safe.
6. Multiple modes
Having multiple modes in metal detectors is a usual element. Generally, the common modes in metal detectors are;
- All-metal Mode
- Full-Discriminate Mode
- Tone Discriminate Mode
- Pinpoint Mode
7. Operating Frequency
The operating frequency of a metal detector is crucial feature. The frequency of metal detector is measure by kilohertz (kHz). Often it refers to the number of times a signal is transferred and received through the detector in every second. Most of the detectors work at a low frequency.
As a result, it ensures a better sensitivity to copper and silver and a high-quality detection depth. On the other hand, the high frequency metal detectors offer less sensitivity to small metals and natural gold.
To conclude, understanding how metal detectors work is essential for a successful exploration of objects. If you are familiar with the application of a metal detector, you can find almost anything in the world.