KingDetector MD-4080 Metal Detector Review

man holding both metal detector and shovel
Buying Guide
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Are you looking for a new metal detector? Maybe you just want to try out the hobby. If you are wondering if you might like metal detecting, you want to find a product that will be easy to use for a beginner and also easy to assemble.

Here, we have reviewed the KingDetector MD-4080 metal detector. It is less sophisticated than some more in-depth detectors, which makes it ideal for those who are just starting out with the hobby.

KingDetector MD-4080 Metal Detector

This metal detector is the upgraded version of the MD-4030 also from KingDetector. This upgraded model, the KingDetector MD-4080, provides a new search coil as well as a quicker reaction time. With this model, you can find items quicker. Nevertheless, it is still the beginner model, but with a few upgrades.

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Who Is the Product For?

This metal detector can be used by virtually everyone, but it is targeted to be a great starter for new hobbyists. It can also be a nice way to get your children involved in the hobby as well. It is very easy to use, which makes it ideal for those who haven’t used a metal detector in the past.

The product is also quite easy to put together, which is not always the case with more sophisticated models. Because the operation is so straightforward, it isn’t necessarily the best option for the more experienced enthusiast, though it works fine enough for them to use as well.

With this detector, just about anyone can look for coins, jewelry, silver, relics, and cold.

What’s Included?

Along with the KingDetector MD-4080, you also receive the instructions for use, one folding shovel, and the no-risk warranty offered by the manufacturer.

Overview of the Features

This metal detector from KingDetector gives you a super quick reaction time when finding items, especially when compared to the previous MD-4030 model. It also has an indicator mode that helps you to recognize the type of metal being detected.

Two Operating Modes

With this detector, you can search for relics, gold, silver, jewelry, and coins pretty easily. In addition, you can use this product just about anywhere, and it is easy to transport. Use it in the snow, on mountains, in parks, or on lawns. You can even detect metal in shallow waters.

There is the discrimination mode as well as the all-metal mode that you can use. Both modes can be started with the push of a button. They allow you to search for specific metals and to discriminate between them.

For example, you can look for earrings, gold, silver, rings, bracelets, or coins. No matter your intended target, you should be able to find it with the MD-4080.

Pointer Meter

There is a Pointer Meter that allows you to adjust the sensitivity of the detector as well as its detecting ability. You can do this in accordance with your own judgment. So, for example, if you want to use this with your children, you could intentionally set it to help with their hand-eye coordination.

Volume Button

There is a volume button with the KingDetector MD-4080 that allows you to adjust the level of the voice during detection. So, set the volume to fit where you are detecting and your overall environment.

If it’s noisy at the beach, put the volume up. On the other hand, if you are in a quiet park and don’t want to be too disruptive, just lower it.

Low-Battery Indicator

This device also has a low-battery indicator, so you know when you need to take a quick break.

Headphone Jack

The headphone jack allows you to plug in headphones. If you want to purchase the headphones from the manufacturer, you will have to do so separately.

Arm Support and Adjustable Stem

The arm support allows you to carry the detector with ease. You shouldn’t get nearly as fatigued as you might with some alternative detectors. Finally, the adjustable stem should also keep you pretty comfortable. You can simply adjust it to suit your size.


The warranty is good for 12-months so you can have this purchase risk-free. In addition, the manufacturer’s customer service is available for any questions or issues.


  • Easy to use
  • Easy to put together
  • Convenience features for easy carrying


  • Inadequate assembly instructions
  • Cheaper construction
  • Cheap shovel


Below, you will find a video on how to assemble and adjust the MD-4080. Even though it is easy to put together, it is intended to be used by new hobbyists. As such, it can be much easier to watch it being assembled than to try to figure it out on your own. This is especially true if you’ve never used a detector before.

You can find the video below. The video walks you through removing all of the parts from the box, assembling the full product, and air testing it.


The KingDetector MD-4080 is designed for new hobbyists, and as such, it isn’t the most durable metal detector you will find on the market. There are plenty of sturdier options available, but they are usually reserved for those who are either already experienced in metal detecting or who know they will continue the hobby.

If you want to keep with a beginner metal detector, a good alternative is the MIYAY Lightweight Metal Detrctor. This product comes as a beginner’s metal detector pack and offers high sensitivity, a beginner’s guide to metal detecting, a waterproof search coil and stem, and a low-battery indicator. It also has a discrimination function and a pinpointer.

If you are looking for a more sophisticated option, one alternative is the Bounty Hunter PL Time Ranger. It is a professional metal detector that operates in four different modes. It has a ground-balance monitor system as well as a programmable notching system.

You will also experience one of three unique tones used to indicated different kinds of metal detected. This option from Bounty Hunter also comes with a five-year limited warranty that covers defects in materials and workmanship.


The KingDetector MD-4080 is a great option for any beginner in metal detecting. It serves its purpose and offers some great comfort features. It is easy to use and equally easy to assemble, which is key for anyone that is new to the hobby.

Although, it does have its drawbacks, given its cheaper construction. Nevertheless, that may be expected since it is intended to be used as a stepping stone toward more sophisticated machines.

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