5 Best Underwater Metal Detectors (Top Picks 2023 Reviewed)

Underwater Metal Detectors are a useful way to diversify your scuba diving experience. We’ve tested dozens of waterproof metal detectors, including the latest from Minelab Equinox, XP Deus, and Garrett Sea Hunter, to see which ones are the best for your next scuba diving adventure in your hand.

The best waterproof metal detectors combine solid construction, high detection depth, target discrimination, and various operating frequencies for successful underwater treasure hunting.

As per my personal experience, I found Minelab Equinox 800 is the specially designed best underwater metal detector available on the market. It is the best due to its high quality, ease of use, and affordable price. It offers a lot of amazing features that include a lightweight design, customizable settings, and excellent performance.

Understanding Underwater Metal Detectors

Underwater metal detectors are specialized devices crafted for detecting metal objects beneath the surface of water bodies, such as oceans, lakes, rivers, or even submerged archaeological sites. They offer enthusiasts, divers, and professionals the means to locate treasures, artifacts, or valuable items hidden beneath the waves.

Waterproof Metal Detectors vs. Underwater Metal Detectors: What’s the Difference?

Scuba metal detectors are designed to withstand rain, splashes, and damp environments, making them suitable for land and shallow water use, like beachcombing. They can handle wet conditions but aren’t meant for full submersion.

On the other hand, underwater metal detectors are specially built for deeper underwater exploration, like scuba diving and snorkeling. They have complete waterproofing and can be fully submerged to find treasures beneath the waves. In essence, waterproof detectors handle surface moisture, while underwater detectors dive deep for submerged discoveries.

Overall Best waterproof metal detectors

Minelab Equinox 800

Minelab Equinox 800

The Minelab Equinox 800 is a game-changer for metal-detecting enthusiasts. Its versatility is performing exceptionally well on land and scuba diving metal detectors. The multi-frequency technology ensures superb target discrimination and depth, making it a top choice for finding coins, relics, and jewelry.

I love Its lightweight design and customizable settings. While it comes at a premium price, the Equinox 800 offers outstanding performance and is a must-have for serious detectorists.

However, I found that some users have reported a few downsides. One common complaint is that it can be complex to learn and configure, making it less user-friendly for beginners. Additionally, its price point is on the higher side, which may not be suitable for budget-conscious buyers.

best submersible metal detector

XP Deus II scuba diving metal detector

XP DEUS Metal Detector

The XP Deus II is a game-changer in the world of metal detecting. Its lightweight design and wireless technology make it incredibly practical for on-the-go hunting. I recently took it to a local beach, and the depth and accuracy of this detector blew me away.

Not only did it pick up small coins buried deep in the sand, but it also handled wet, salty conditions like a champ. The customizable settings and fast recovery time allowed me to discriminate between trash and valuable finds easily. The XP Deus II may come with a higher price tag, but its performance and user-friendly design make it worth every penny for serious detectorists.

some users have reported downsides in practical use. One common concern is the learning curve associated with its advanced settings and customization options, which may be overwhelming for beginners. Additionally, its premium price point can be a drawback for budget-conscious individuals.

best deep water metal detector

Garrett Sea Hunter Mark II

The Garrett Sea Hunter Mark II is a top choice for underwater metal detecting enthusiasts. Its submersible design makes it ideal for beach and underwater hunts. The pulse induction technology ensures impressive depth and sensitivity, even in saltwater.

It’s simple to use, and the dual search modes help distinguish between different types of metals. While it can be a bit heavy for prolonged use, its performance in challenging underwater conditions is hard to beat. Overall, a reliable choice for serious underwater treasure hunters.

While the Garrett Sea Hunter Mark II is a reliable underwater metal detector, some users have noted that its heavy design can be fatiguing during prolonged use. The weight can become a downside when covering a large area, especially if you’re searching for extended periods. However, many users still appreciate its performance and durability for underwater metal detecting, especially in saltwater environments.

scuba metal detectors

Scuba Tector water metal detectors

The Scuba Tector is a compact and user-friendly underwater metal detector that I’ve found incredibly practical for my scuba diving adventures. Its portability and ease of use make it a valuable tool for underwater treasure hunting.

The detector’s sensitivity and discrimination capabilities have allowed me to locate various metal objects, from coins to jewelry, with impressive accuracy. Its waterproof design is robust, and the LED flashlight is a handy addition for low-light conditions. Overall, the Scuba Tector has enhanced my underwater detecting experiences and is an excellent choice for both beginners and experienced divers.

Some users have also reported issues with its sensitivity to small targets, which can result in missed finds. Additionally, the compact design can be challenging to handle underwater for extended periods. However, it remains a popular choice for recreational divers and snorkelers due to its portability and ease of use.

professional underwater metal detector

Minelab Excalibur II

The Minelab Excalibur II is an exceptional underwater metal detector. I’ve used it extensively for beach and underwater hunting, and it’s proven itself to be incredibly reliable and effective. Its waterproof design, down to 200 feet, is a game-changer, allowing me to explore both shallow and deep waters with ease.

The Excalibur II’s unique Broad Band Spectrum (BBS) technology delivers impressive target identification and discrimination, ensuring I dig up valuable finds while ignoring junk. Its versatility, durability, and user-friendly interface make it a top choice for serious underwater metal detecting enthusiasts like myself.

While the Minelab Excalibur II is known for its exceptional underwater metal detecting capabilities, some users have experienced downsides related to its weight and balance. The detector can be a bit heavy and may require additional effort to maintain proper buoyancy while diving or snorkeling.

How to choose the scuba metal detectors: Buyer guide

Choosing the best underwater metal detector requires careful consideration to ensure you find the right one for your needs. Here’s a buyer’s guide to help you make an informed decision:

  • Waterproof Rating: Look for detectors specifically designed for underwater use with a high waterproof rating. It’s essential that the detector can handle immersion to the depths you plan to explore.
  • Type of Water: Consider where you’ll be using the detector—whether it’s in freshwater, saltwater, or both. Some detectors are better suited for certain environments due to their sensitivity to mineralization.
  • Depth Rating: Check the depth rating of the detector to ensure it can reach the depths you plan to search. Some detectors are suitable for shallow waters, while others can handle deeper dives.
  • Search Coil: Opt for a detector with a waterproof search coil designed for underwater use. The size of the coil can affect your ability to detect small or deep targets.
  • Frequency: Choose a detector with an appropriate frequency for your target objects. Higher frequencies are better for smaller items, while lower frequencies are ideal for larger, deeper targets.
  • Control Box Design: The control box should be easy to use and sealed to prevent water damage. Ensure that the buttons and screen are accessible and visible underwater.
  • Battery Life: Longer battery life is crucial for extended underwater sessions. Consider whether the detector uses built-in rechargeable batteries or replaceable ones.
  • Weight and Balance: A well-balanced and lightweight detector will reduce fatigue during extended underwater hunts.
  • Audio Feedback: Look for a detector with clear and adjustable audio feedback. Underwater, you rely heavily on sound signals to detect targets.
  • Sensitivity to Minerals: Ensure that the detector can handle the mineralization present in your chosen search area. Some detectors offer ground balance adjustments to combat interference from minerals.
  • Budget: Set a budget based on your requirements. While top-of-the-line underwater detectors can be expensive, there are also more affordable options that provide decent performance.

By carefully evaluating these factors and considering your specific needs, you’ll be better equipped to choose the best underwater metal detector for your underwater treasure-hunting adventures.

How to use Underwater Metal Detectors My practical tips

Using an underwater metal detector effectively requires a combination of proper technique and equipment care. Here are some practical tips to help you make the most of your underwater metal-detecting experience:

Choose the Right Detector: Invest in a quality underwater metal detector designed for the specific environments you plan to explore, whether it’s freshwater lakes, saltwater beaches, or deep-sea diving. Ensure that it’s waterproof and can withstand submersion to the depths you intend to explore.

Read the Manual: Before you head out, thoroughly read the user manual that comes with your detector. Understanding your equipment’s features and settings is essential for efficient detection.

Check Batteries and Seals: Ensure your detector’s batteries are fully charged or replaced before each outing. Check and maintain the seals and gaskets to prevent water damage.

Slow and Steady Swinging: Swing the search coil at a slow, consistent pace to ensure it covers a sufficient area while giving the detector time to process signals. Overlapping your swings slightly is also a good practice.

Pinpoint Targets: Many underwater detectors have pinpointing modes or features. Use these to precisely locate the target’s location before digging to avoid unnecessary disturbance.

Bring the Right Accessories: Invest in a sturdy sand scoop or digging tool designed for underwater use. Some also use mesh bags to collect targets while minimizing the disturbance to the seabed.

Be Mindful of Tides and Currents: If you’re detecting in the ocean, be aware of tide schedules and currents. Low tide can expose more search areas, while high tide may limit your access.

Stay Safe: Always prioritize safety while underwater. Be aware of your surroundings, diving conditions, and potential hazards.

Underwater Metal Detector


In the depths of adventure, where hidden treasures await, your journey begins with the best underwater metal detector by your side. Dive into a world of mystery and discovery, where history sleeps beneath the waves.

From sunken ships to lost jewelry, these top-notch detectors are your key to unlocking the secrets of the deep. Don’t miss out on the chance to embark on your underwater quest with the ultimate tools of the trade. Equip yourself with the best underwater metal detector today, and let the underwater adventures begin

Reference and Resources

  1. Manufacturer Websites:
  2. Metal Detecting Forums:
  3. Metal Detecting Magazines:
  4. Online Retailers:
  5. YouTube Channels:

About Author

  • John Steele

    I started Metal Detecting hobby back in the early 89's. My first detector was a Whites 5900 DI.. I am fully dedicated to the art of detecting and always feel great pleasure in sharing His knowledge an...