One of the most common questions metal detectors ask today is how deep can metal detectors detect? And it is not an out of place question.
It's difficult to give a single answer on this topic because metal detectors have different depth levels simultaneously. This is determined by the type of detector you have and the search's purpose.

If you want to learn about all the different types of metal detectors, read this article to learn a little more about how they can help you in your next search.

METAL DETECTOR-DETERMINED DEPTH LEVELS
There is no specified maximum depth level. This is due to the wide range of metal/gold detector available and their capabilities and the type or size of object discovered.

Contrary to popular belief, not all metal detectors are created equal. It can detect a specific type of metal and even get closer to others, depending on the parameters it was developed, such as security detectors.

Coins, gold brochures, and other relics are designed to be detected at various depths and environments by metal detectors designed for relic hunting.

Some metal detectors are programmed to detect a basic degree of depth. Your current rank decides this.

Low range detectors can detect 5 to 10 cm, whereas medium range detectors can detect roughly twice as much, between 10 and 15 cm. Moreover, they can be up to 25 to 35 cm deep in the high-end casing. All of this applies to rather simple metal detectors.

Best gold detector in the world can identify a wider spectrum of metals due to various factors, one of which is the type of metal it specializes in.

Hope this information helps!