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Best Metal Detectors

last updated Apr 18, 2019

We have all been to the beach and wondered what treasures are buried beneath the sands, and if only we had some sort of way to detect those treasures. Or maybe if you live near a beach and visited it regularly, you have seen someone with a device walking along the beach and uncovering lost change or other goodies and thought to yourself that you would love that to be you. Well, it sounds like it is time to invest in a metal detector. Metal detectors are a fun way to find lost or hidden treasures that are not visible to the naked eye and if you are in the market for one, you have come to the right guide. Below we have listed the top ten metal detectors for you this summer season and explained why these metal detectors are the best over the rest.

In a Hurry? The test winner after 14 hrs of research

icon
Garrett AT Pro
93.3/100 our score
Accuracy
95
Effectiveness
95
Durability
90
Weight
93
Garrett AT Pro
Why is it better?

It is ideal for hunting coins, caches, gold nuggets and relics

Has a fast recovery speed

Designed with a weatherproof housing

In a Hurry? Editors choice:
Garrett AT Pro
Test Winner: Garrett AT Pro
Researched Sources
15
Researched Sources
Reviews Considered
1.2k
Reviews Considered
Hours Researching
14
Hours Researching
Products Evaluated
15
Products Evaluated
Last Updated:
By Jordan Coleiro:

This list of metal detectors has been put together to show you the best researched and reviewed metal detectors to help you start your treasure hunting dreams and find hidden goodies outdoors. A metal detector to keep your eye on is the Garrett AT Pro. We love this addition because it is highly rated, has great accuracy, and is weather resistant.

Sorting Options
Accuracy Effectiveness Durability Weight By Default
Rank
PictureProduct
Name
Rating
Shops
#1
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
93.3
Accuracy
95%
Effectiveness
95%
Durability
90%
Weight
93%
Price Comparison Last Updated (22.05.19)
$552.45
#2
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
93
Accuracy
93%
Effectiveness
93%
Durability
93%
Weight
93%
Price Comparison Last Updated (22.05.19)
$219.00
#3
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
92.5
Accuracy
94%
Effectiveness
94%
Durability
92%
Weight
90%
Price Comparison Last Updated (22.05.19)
$254.95
#4
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
91.5
Accuracy
93%
Effectiveness
93%
Durability
90%
Weight
90%
Price Comparison Last Updated (22.05.19)
$1,565.00
#5
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
91.5
Accuracy
90%
Effectiveness
90%
Durability
92%
Weight
94%
Price Comparison Last Updated (22.05.19)
$149.99
#6
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
91.3
Accuracy
90%
Effectiveness
90%
Durability
91%
Weight
94%
Price Comparison Last Updated (22.05.19)
$455.19
#7
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
90.8
Accuracy
90%
Effectiveness
90%
Durability
91%
Weight
92%
Price Comparison Last Updated (22.05.19)
$199.00
#8
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.8
Accuracy
90%
Effectiveness
90%
Durability
92%
Weight
87%
Price Comparison Last Updated (22.05.19)
$89.99
#9
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89
Accuracy
89%
Effectiveness
89%
Durability
90%
Weight
88%
Price Comparison Last Updated (22.05.19)
$79.99
#10
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
88.5
Accuracy
88%
Effectiveness
88%
Durability
89%
Weight
89%
Price Comparison Last Updated (22.05.19)
$577.15
In Depth Review Top 10
  • Garrett AT Pro
  • Fisher F22
  • Garrett Ace 300
  • XP Deus
  • National Geographic PRO
  • Fisher Gold Bug
  • Teknetics Delta 4000
  • URCERI GC
  • Canway GC-1028
  • Tesoro Sand Shark
Table of contents
  • Criteria Used for Evaluation
  • Other Factors to Consider
  • Frequently Asked Questions
  • Sources

Top Ten Metal Detectors

1. Garrett AT Pro

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
93.3
Garrett AT Pro
Accuracy
95
Effectiveness
95
Durability
90
Weight
93
best offer for today
$552.45
Pros:

It is ideal for hunting coins, caches, gold nuggets and relics

Has a fast recovery speed

Designed with a weatherproof housing

Cons:

Headphones could be more durable

No matter if you wish to use the AT Pro in wet, humid, or dusty conditions, it is designed to handle anything in its way. Plus, its digital target ID system offers increased convenience.

Read more

Overall Performance
No matter where you want to use the AT Pro and what you intend to use it for, it will perform very well. This includes as a coin, relic, cache, and jewelry hunter at the beach, in the water, or in ghost towns.

Design Features
You can switch from either standard or professional search modes with the latter having enhanced audio features.

User Interface
Using the integrated digital interface, you can use the touchpads to set the discrimination that you prefer (one of 40 levels). Plus, the digital target ID can be seen from the interface.

Physical Construction
Thanks to the weatherproof housing, this unit can be immersed in the water down to 10 feet. Oh yeah, this housing also makes it suitable for operation in dusty, wet, and humid conditions.

Weight and Portability
The AT Pro, despite its advanced features, is actually one of the lighter models on this list. At just over three pounds, it should make for easy travel.

Overall
At the end of the day, it is difficult to come up with any reasons why you would not want to invest in the AT Pro. When that can be claimed for a product, it must be special.

2. Fisher F22

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
93
Fisher F22
Accuracy
93
Effectiveness
93
Durability
93
Weight
93
best offer for today
$219.00
Pros:

Only weighs 2.3 pounds when fully assembled

You can expect 25 to 30 hours of battery life

Designed with 10 levels of sensitivity

Cons:

Could be more accurate

It is not difficult to see why the Fisher F22 is one of the most popular models in the world. However, it is held back a bit by its accuracy issues. Still, it gets the job done most of the time.

Read more

Overall Performance
In spite of everything that is good about the F22, the accuracy is questionable at times. It does not necessarily make it unusable, but it can be frustrating at times.

Design Features
Past the 10 levels of sensitivity that you can adjust, the F22 also has a pinpoint mode. What this allows you to do is receive an even more accurate reading of what has been picked up.

User Interface
While the user interface is far from an issue, some buyers may not like that it only notes whether an object is near the conductivity range of either iron, silver or gold.

Physical Construction
The F22 is not going to be suitable as an underwater unit even though the search coil is waterproof. But, the 25 to 30-hour battery life provided is quite impressive.

Weight and Portability
One of the best selling points of the F22 is its 2.3-pound weight. As opposed to various other models on the market, this is easily one of the lightest that you will find.

Overall
The thing about this model is you may just have to live with inconsistencies from time to time. Given its price range, though, most consumers will be able to do just that.

3. Garrett Ace 300

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
92.5
Garrett Ace 300
Accuracy
94
Effectiveness
94
Durability
92
Weight
90
best offer for today
$254.95
Pros:

Offers more segments of iron detection

Designed with specific search modes

Both innovative and user-friendly

Cons:

The control box is not waterproof

What is most impressive about the Ace 300 is it manages to be both innovative and user-friendly at the same time. With its plethora of features, that is not an easy nail to hit on the head.

Read more

Overall Performance
For both quick and accurate target identification, this sports the coveted digital target ID system. With it, you can hunt down coins, relics, and all sorts of treasures.

Design Features
In addition to the digital target ID system, the Ace 300 also implements discrimination patterns and an adjustable frequency (which will only come in handy for specific situations).

User Interface
This is where things could have gotten really bad for the Ace 300. However, Garrett avoided this by designing an interface that packs all of the features into an easy-to-use system.

Physical Construction
Even though a portion of this model is waterproof, the rest is not. As such, this is not intended for use in deep water as the control box can’t be submerged.

Weight and Portability
At a listed weight of 5.15 pounds, this pretty much falls into the middle of the road in terms of its weight class.

Overall
Too bad the control box was not waterproof as then this unit may have landed even higher on this list. Still, the Ace 300’s ideal combination of versatility and simplicity make it worth the price of admission.

4. XP Deus

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
91.5
XP Deus
Accuracy
93
Effectiveness
93
Durability
90
Weight
90
best offer for today
$1,565.00
Pros:

The shaft and stem are collapsible

Built with a molded rubber handle

You can update the software at any time

Cons:

A learning curve if you're a beginner

If you are looking to splurge on a new device and want the best functionality possible, there may not be a better model than this one. Plus, it comes equipped with wireless WS5 headphones.

Read more

Overall Performance
To be honest, this model detects deeper than you are probably willing to dig. All things considered, that is certainly not a bad trait to have but there is a learning curve.

Design Features
Even without the remote control, the WS5 headphones can operate the main unit. Plus, you can control the ground balance, tones, frequency, factory programs, coil change, volume, and sensitivity.

User Interface
All the aforementioned design features can be controlled via the large LCD display. But, as mentioned before, there is a bit of a learning curve so be patient with the interface.

Physical Construction
Though the functionality of this unit is impressive, the construction may be more so. After all, the coil is fully submersible in water, the cup is made of a plastic resin and the handle is designed with ergonomics in mind.

Weight and Portability
The product description has this labeled as a two-pound device. In addition to this, the shaft and the stem are collapsible to make it much easier to transport.

Overall
The simple reality is if you are willing to spend the money, you can own the best metal detector in the world. However, it is fair to assume that this will be well-past the average consumer’s price range.

5. National Geographic PRO

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
91.5
National Geographic PRO
Accuracy
90
Effectiveness
90
Durability
92
Weight
94
best offer for today
$149.99
Pros:

It is compact and collapsible

Designed for all ages and skill levels

It is backed by a two-year warranty

Cons:

Accuracy could be better

The last model on this list is the Pro Series from National Geographic and it is one of the better models for travel. This is because of its compact and collapsible nature.

Read more

Overall Performance
The PRO Series gets a lot right; let’s just say that right off the bat. But, one of its faults is that it can be sporadic in its performance from time to time. Sometimes, it will detect something that is not even there.

Design Features
In spite of the slight performance issues, the pro features that come included in this system are fantastic. This includes three detection modes, four sensitivity levels, and a pinpoint location feature.

User Interface
Even though this is advertised as being simple to use for all ages and skill levels, there is something that is not claimed. While this may be true, some prior understanding still will be necessary.

Physical Construction
No matter in rain or shine, the waterproof coil allows you to find treasures at any time.

Weight and Portability
Being both lightweight and collapsible, this unit is very easy to transport. Its collapsible dimensions are just 22 inches.

Overall
Simply put, this is one of the better models for travel on this list. Then again, its limitations may be too much for some buyers to get over.

6. Fisher Gold Bug

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
91.3
Fisher Gold Bug
Accuracy
90
Effectiveness
90
Durability
91
Weight
94
best offer for today
$455.19
Pros:

Designed with elite ergonomics

Built with a large LCD screen

It will specifically find gold

Cons:

It can be hard to decipher the tones

For those of you who are primarily concerned with finding gold, then the Gold Bug from Fisher is your ticket. While it is not without its imperfections, it can efficiently detect the smallest underground gold nuggets.

Read more

Overall Performance
Again, this system is specifically designed to find gold. If you are not interested in finding this mineral, then it is better to look for a different metal detector.

Design Features
There are two search modes designed into this unit (all-metal and discriminate). Additionally, there is a computer-assisted ground balance and regular ground balance.

User Interface
What is nice is the large LCD display is very easy to see. But, the tones can be difficult to decipher. However, viewing the numeric target ID system has never been easier.

Physical Construction
Thanks to the best ergonomics in the world, controlling this detector is quite enjoyable. However, the control box needs to be kept out of the water (light rain is okay).

Weight and Portability
One inclusion that would have been nice is a case. But, the unit itself is easy to transport and the 4.6-pound weight certainly helps.

Overall
For the right people, the Gold Bug is going to be the best model on this list. It really comes down to how much you want to pursue gold as if you do, pick this unit up right now.

7. Teknetics Delta 4000

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
90.8
Teknetics Delta 4000
Accuracy
90
Effectiveness
90
Durability
91
Weight
92
best offer for today
$199.00
Pros:

Only weighs 3.5 pounds

Sports a large and easy to read LCD display

It is ideal for coin shooting and relic and gold hunting

Cons:

Does not store your preferred settings

The Delta 4000 could be considered an entry-level model due to its simple nature. Yet, sometimes in life, it is nice when things are kept simple as they are easy to get in that way.

Read more

Overall Performance
One buyer noted that the Delta 4000 can be overly-sensitive at times. But, with it, you can find all sorts of gold, relics, and coins.

Design Features
This is loaded with all sorts of vital design features. Among them, the most notable is the adjustable sensitivity, adjustable discrimination, and static push-button pinpoint.

User Interface
The included software is pretty self-explanatory and all the buttons on the interface are clearly labeled and easy to use. You can’t really ask for much more, honestly.

Physical Construction
Beyond the fact that this can run for around 25 hours with a single nine-volt battery, the coils are actually interchangeable and can be submerged in water.

Weight and Portability
Be aware as one consumer noted how the supposedly included arm sling, which would be useful for operation and portability, was not inside the box.

Overall
As an unbiased buyer, it is easy to see why this unit poses concerns. Now, what also needs to be remembered is despite the slight setbacks, the Delta 4000 is still a highly competent model.

8. URCERI GC

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.8
URCERI GC
Accuracy
90
Effectiveness
90
Durability
92
Weight
87
best offer for today
$89.99
Pros:

The search coil is waterproof

Will search for all kinds of metal

Includes headphones

Cons:

The sensor could be more powerful

These next set of models are not really outfitted for the serious enthusiasts out there. But, starting with the GC-1028, it is nice as it is going to detect all kinds of different metals.

Read more

Overall Performance
While this is certainly far from the most efficient model on this list, it does a suitable job picking up coins, jewelry, relics, gold, and silver.

Design Features
Included with this model are headphones with a 3.5-millimeter audio jack. Also, this sports electronic pinpointing, three types of audio alerts, and even adjustable sensitivity.

User Interface
The GC-1028 actually sports a large, fully-colored LED screen. With its integrated backlight, you can easily view any of the parameters on the screen. Of course, you will have to play around with it to get accustomed to it.

Physical Construction
On top of being waterproof, the search coil and the rod are also fully adjustable. This can come in handy with people of differing heights who want to use it.

Weight and Portability
Included with your purchase is a case and also a portable shovel, for digging. As compared to other models, though, the metal detector itself is fairly lightweight.

Overall
For weekend or vacation uses, this is pretty much perfect. But, as you probably can guess, if you plan to use it on a regular basis, you may be disappointed with what is provided.

9. Canway GC-1028

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89
Canway GC-1028
Accuracy
89
Effectiveness
89
Durability
90
Weight
88
best offer for today
$79.99
Pros:

Backed by a lifetime warranty

Perfect for beaches

Designed with an all-metal mode and discrimination mode

Cons:

Could be more accurate

If you are looking for a great model to share with your kids, then Canway might have you covered. While it will stay take practice to get accustomed to, this model is user-friendly.

Read more

Overall Performance
One of the benefits of this device is that it can track all types of metals. But, as the seller indicates, its detecting range is limited to three feet.

Design Features
In addition to the all-metal mode, there is also a discrimination mode. What this allows you to do is eliminate the possibility of detecting junk metal. Plus, the sensitivity is adjustable.

User Interface
Although the LCD interface is user-friendly (and backlit for night time operation), it still takes practice to get accustomed to.

Physical Construction
As with most other models on this list, the search coil is safe for full submersion. However, the control panel should be kept away from the water as electrical components are involved.

Weight and Portability
When need be, this can easily be expanded. As for the weight, Amazon has it listed at 6.3 pounds, which actually could be considered heavy for metal detectors.

Overall
Accepting this for what it is is crucial. The reason for this is that you could either end up severely disappointed or happily satisfied; it just depends on your expectations.

10. Tesoro Sand Shark

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
88.5
Tesoro Sand Shark
Accuracy
88
Effectiveness
88
Durability
89
Weight
89
best offer for today
$577.15
Pros:

Depth rated for down to 200 feet

Includes a pulse width control

Considered to be the best saltwater model in its price range

Cons:

Struggles to detect gold

Of its price range, it is no surprise to see why so many buyers have claimed the Sand Shark to be the very best saltwater metal detector. Why don’t you read on to see for yourself?

Read more

Overall Performance
Tesoro designed their Sand Shark with advanced digital pulse induction technology. What this does is combine time-proven pulse induction with the latest digital technology.

Design Features
There are two main operating modes. One of which is VCO mode and this is ideal for pinpointing. The other is the normal mode and this works efficiently for beachcombing.

User Interface
The interface of the Sand Shark is actually not digital. Instead, it is comprised of control knobs but the redeeming quality is that they are still simple to operate.

Physical Construction
Based on your settings, you can get roughly 10 to 20 hours of battery life. In addition, this unit can be submerged down to 200 feet, which is beyond impressive.

Weight and Portability
Amazon has this listed at 6.35 pounds and that is a bit heavy. While not exactly cumbersome, this extra weight can be a bit of a nuisance.

Overall
In a way, this feels like an old-school design. Perhaps it is the lack of a digital interface but it just seems that Tesoro focused most of their time on the performance end of things, which is fantastic.

Criteria Used for Evaluation

Accuracy

If you did not know any better, you could assume that all metal detectors will find all types of metal. While there may be some truth to that statement, they are typically designed to better find particular types of metals. Of course, there are all-purpose models out there that will find everything from relics to coins, jewelry to gold, and even rings. If you really do not have a certain metal that you are attempting to find, an all-purpose model may be the ticket. But, maybe you are more so looking for buried coins, treasure caches, and artifacts.

For minerals such as these, you are going to want a model that can detect deeper depths. As you probably assumed, this does mean you will have to spend a little extra money. But, it is worth it to find what you truly want. Of course, you may also just be looking for all-natural gold. Often referred to as gold nuggets, those of you who treasure hunting for gold will want a model such as the Gold Bug (which was documented). No matter which types you ultimately end up getting, though, ensure it performs well and is designed with accuracy in mind.

Effectiveness

When it comes down to it, there are a number of key features that you should keep your eye on when you are in the market for a metal detector. For starters, you should always assess the sensitivity of the unit. The reason this is important is it will determine what you can detect (which goes back to the first point). Lower operating frequencies will be ideal for penetrating deeper in the soil to detect metal. But, you should be able to adjust this sensitivity and this can be critically important if you are looking for different types of metals.

Speaking of different metals now is a good time to talk about discrimination. This is a feature found in most models and it allows the system to differentiate between different metals. The more options a unit has, the more precise it can be at detecting a specific metal. Finally, you should also keep an eye on a pinpoint mode. This also increases the precision of your search as it automatically aligns the response point to the center of the coil.

Durability

One of the most important qualities for a metal detector is their weight, but that will be alluded to in a bit. However, the reason it was just hinted at is that it has a direct tie-in to this section. After all, just because it is a good aspect when they are light in weight, you do not want them to be cheaply made. They may not need to be able to withstand 50 feet drops, but they should be durable enough to handle mild abuse (perhaps a casual drop here and there). But, what about if you want to use them in the water?

You see, some will be built with waterproof housings that make them completely safe to be submerged in water. Then again, other models will only be suitable for shallow water as the search coil will be waterproof, but not the control box. Either way, keep that in mind. Finally, pay close attention to the handle. Superior models will integrate an ergonomic handle to make them comfortable for longer uses. Trust us, you will be thanking yourself later.

Weight

Now it is time to fully address the weight and yes, it plays a critical role. In addition to being more cumbersome to transport, heavy metal detectors will also cause more strain on your muscles. It may not be a big deal right away but around 20 minutes in, you will be wishing that you went with a lighter model. While this alone is critical for the portability, you can also assess to see if the detector is collapsible. If it is, you can shrink it down for transport (which can save room).

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A clear screen will help

For the most part, these systems will not be too convoluted and complex but you may need to live with the fact that a learning curve could be in order. With that said, there are a number of top-end models who claim to be ideal for beginners. Thankfully, most models will sport a digital, LCD (sometimes LED) screen. What this will do is simplify the operation as all the data will be clearly displayed in front of you.

Other Factors to Consider

Band

When looking for a metal detector to invest in and start your treasure hunting adventures one of the most important things you want to ensure is not only the metal detector you are looking at is lightweight but also has a comfortable band. The band is secure support that wraps under your arm to give you extra support.

You want to make sure that this band is comfortable and will not make you uncomfortable as you will already be supporting the weight of the machine. Most bands come with a cushion or a comfortable material but it is always best to check out the unit or pictures of the unit to ensure it comes with a comfortable band.

Frequently Asked Questions

q: How Deep Will They Detect?

a:

What is so ironic about this question is it may be the most asked one across the consumer base of metal detectors. Yet, it can’t even be answered straight up. This question is like a math equation that is filled with several different variables. In other words, there are too many factors that come into play to provide a direct answer to this question. For example, the length of time an object rests underground can have serious implications on if the detector can actually detect it. This is because, after a while, the metal will corrode due to the soil.

Also, the size of an object can play a role. If it is smaller, it will be more difficult for the machine to detect the piece of metal. Finally, the conductive properties of the soil (if it is heavily mineralized) can reduce the penetration power.

q: Are There Any Laws In Regard to Treasure Hunting?

a:

Would it not be nice if you could go on any piece of land and look for treasure? Well, unless you are a tad bit ignorant, you know that this can’t be justified. As such, yes, there are laws that are in regard to treasuring hunting. In the United States, specifically, every square inch of space is owned by something. Whether this is by an individual, a group, or the government, it is all occupied.

So, you will have to perform some heavy research on the area you are considering searching for treasure. Some may allow you to search but will not allow you to keep what you find; so, be wary of that.

q: Is the Bigger, the Better, for Search Coils?

a:

This guide has made reference to search coils quite a bit and it is an essential component of any metal detector. But, different sizes are typically offered and some may even be interchangeable. The question then becomes, however, is it simply better to go bigger? Well, it could be but it will not always be the case. For example, a smaller search coil can actually pick out ideal targets more when they are in a bunch of trash targets.

On the contrary, the larger the search coil, the more the detector can penetrate. But, they are better suited for low-mineralization areas. Honestly, a standard size (eight-inch) should suffice for most situations.

q: What Exactly is Target ID?

a:

Okay, so we are going to try to explain this next concept so everyone can understand it. So, essentially, a target ID for a metal detector is an accurate way to measure a target’s phase response. Basically, granted you have a unit with discriminate level control, you can increase the discriminate level until the target disappears and then that will tell you where your target is.

Well, that is exactly what the target ID is going to do for you. This becomes important as it allows you to better triangulate the position of the target that is underground. But, many targets will have identical responses so the technology is not foolproof. In short, it is something that most models will feature and it will be a user-friendly tool (even if it sounds too complicated at the moment to understand).

q: Why Do Serious Users Use Headphones?

a:

Have you ever seen someone with a metal detector and a pair of headphones on? Well, chances are, they were not listening to their favorite tunes when you saw them. Instead, headphones are used to greatly enhance the experience. There are several reasons why they do this with one of the primary reasons being they can greatly reduce outside noise. When you are trying to listen to a specific audio alert, background noise can quickly become a nuisance. Oh, speaking of which, headphones can also boost the audio target signal.

This becomes essential as you can easily decipher between different signals to either ignore or capitalize on. All in all, if you are serious about this activity and are really looking to find special minerals, either invest in a pair of headphones or buy a model that comes with a pair.

q: Can They Find Lost Rings or House Keys?

a:

Okay, so these types of devices are a luxury. However, they can also be a great tool to help find a missing item of yours. But, if you have dropped a valuable piece of metal inside your house, a metal detector is not going to help a bit. If you think about what goes into a house’s foundation and construction, you should know that this device will be rendered useless inside. After all, there are electrical currents and metal all around your home.

But, if you happen to drop a ring or your house keys outdoors and have a general idea of where then yes this could be a useful tool. However, they are more beneficial to find metal that is underground as you can physically see minerals that are on the surface.

Sources