Garrett Sea Hunter Mark II Metal Detector

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Product Highlights

  • Warranty: 1 Year Limited Warranty
  • Frequency: 750 Pulses Per Second
  • Total Weight: 5.1 lbs (2.6 kgs)
  • Circuit Type: Cancels Salt & Ground Mineralizations with Pulse Induction Circuitry
  • Submersion Depth: Submersible at 200 Feet Deep

Best for

  • Coin

  • Gold

  • Relic

  • Beach

  • Advanced

  • Beginner

Product Description

Contact for details on the 15% Military Discount!

Garrett Sea Hunter Mark II Metal Detector

with 8" Open Search Coil 

Ideal for Beaches, Lakes, Oceans, and all Waterways. The Sea Hunter has been The Master of Water Treasure Hunting for over 25 years. With it’s unique Discrete Trash Elimination technology, the Sea Hunter Mark II can eliminate most pull tabs and foil without significantly degrading the sensitivity of rings and coins in Discrete Elimination mode. A favorite detector for treasure hunters around the world because of its ability to ignore salt water, the Sea Hunter’s electronic housing can be mounted on the hip or above, below or under the cuff in either short or long configuration.

Read the Field Test: Garrett Sea Hunter Mark II Metal Detector Review now!

Sea Hunter LogoIf you want a submersible PI detector that really discriminates, look no further than the Sea Hunter Mark II. In Addition to providing standard discrimination, the Sea Hunter Mark II boasts a unique Discrete Elimination mode which enables it to discriminate unlike any other PI manufactured. Gone are those pesky pull tab signals when you’re trying to find rings. The Sea Hunter ignores a lot of trash that plagues conventional PI detectors and can find treasure at depths other submersibles can’t reach. Good to 200 feet!

Sea Hunter Mark II FaceFor over fifteen years, beachcombers and professional divers have chosen the Garrett Sea Hunter Mark II Metal Detector as their go-to device for treasure hunting under the water. Since its introduction over a decade ago, Garrett has continuously upgraded the Sea Hunter Mark II to include the some of the most advanced features found in an under water metal detector.

The sturdy construction of this device is built to take the rigors of ocean and sea metal detecting while being comfortable to use with a mounted hip and a long stem. The stem can adapt to any sandy, salty, or wet environment with four different stem configurations including the long stem stem with top, hip and under cuff stem mounts as well as the short stem ScubaMate for underwater searches. It's so sturdy that it can detect in depths of up to 200 feet below the surface!

Sea Hunter UnderwaterWhat makes the Sea Hunter Mark II stand out is its Pulse Induction technology that allows the device to ignore iron and salt water mineralization. In fact, the Sea Hunter Mark II is the only Pulse Induction metal detector that can disregard the appearance of pull tabs, foil, mineralized ballast stone and some iron while still being overtly sensitive to coins and rings. It eliminates trash by using through Standard BI discrimination and Garrett's exclusive Discrete Trash Elimination Mode.

10x14 Search CoilTo get the best out of the Sea Hunter Mark II for underwater metal detecting, Garrett recommends the Super Deep 10" x 14" Pulse Induction Coil. This search coil was designed by Garrett to detect in depths up to 200 feet. It is perfect for finding coins, rings and other treasures. The best part is that there are no special connectors or tools needed to attach it to the Garret Sea Hunter Mark II. Just plug it in and go!


Sea Hunter GraphThe graph depicted to the left displays the typical responses from metals in both trash elimination modes. Setting the Sea Hunter Mark II to a discrimination setting of eight, all metals above Nickels in Standard (Std) mode and above Pulltabs in Discrete (Dis) mode are detectable. This demonstrates how the enhanced power of the Sea Hunter Mark II rejects and eliminates trash while still being able to detect good targets.


Technical Specifications:

  • Operates at 22 Frequencies
  • Protected By One Year Warranty
  • Adjustable at 28" – 52" in Length
  • Floats at a Near Neutral Buoyancy
  • Includes 8-AA Batteries for Hours of Use
  • Weighs in at 5.1 lbs (2.3 kgs) while Stem Mounted
  • Operates at a Frequency of 750 Pulses Per Second
  • Cancels Out Salt and Ground Mineralization with Pulse Induction Circuit
  • Able to be Submerged 200 Feet – Requires the Use of Underwater Headphones
  • Includes Three Search Modes:
    • Non Motion All Metal Deep Seeking Mode with Full Range PI Discrimination for Underwater
    • Standard PI Discrimination that Allows Deep Detection and Detecting in Areas with Little Trash
    • Discrete PI Discrimination that Eliminates Pull Tabs, Foil and other Trash with Sensitivity to Finding Rings and Coins


  • Adjustable Audio Threshold
  • Compartment is Independently Sealed
  • Hip Mounted Belt & Pouch Reduces Weight
  • Adjustable Discrimination & Elimination Control
  • Warranty : Protected by a 1 Year Limited Warranty
  • Frequency : Operates at a Frequency of 750 Pulses Per Second
  • Total Weight : Weighs in at 5.1 lbs (2.6 kgs) Mounted on the Stem
  • Circuit Type : Cancels Salt & Ground Mineralizations with Pulse Induction Circuitry
  • Submersion Depth : Submersible at 200 Feet Deep

Factory Included Accessories:

  • 8" Search Coil
  • Hip Mount Belt / Pouch
  • Underwater Headphones
  • Instructional DVD


  • Manufacturer
  • Instruction Manuals
  • Quick Look
    The Garrett Sea Hunter Mark II Metal Detector is ideal for beach, lake, and sea hunters. Cancels salt, minerals, foil & pulltabs.
  • SKU
  • Manufacturer SKU
  • Product Type
    Metal Detectors
  • Best for
    Advanced, Beach, Coin, Gold, Relic
  • Best for
    Advanced, Beach, Coin, Gold, Relic
  • Product Dimensions
  • Factory Included Accessories
    8" Search Coil, Hip Mount Belt/Pouch, Underwater Headphones, Instructional DVD
  • Warranty
  • Detector Type
    Beach & Underwater
  • Interchangeable Search Coil
  • Technology
    Multiple Pulse Induction
  • Arm Rest
  • Arm Rest Strap
  • Adjustable Shaft
  • Assembled Length Max (in)
  • Assembled Length Min (in)
  • Apps
  • GPS
  • Audio Tones
  • Depth Indication
  • Control Box Mount
  • Frequencies
    Pulse Induction (PI)
  • Number of Frequencies
  • Programmable Target Id
  • Target Id
  • Threshold
  • Discrimination
  • Pinpoint Mode
  • Vibration Mode
  • Search Modes
  • Search Mode Types
    Discrete PI Discrimination, Non-Motion All Metal with Adjustable PI Discrimination, Standard PI Discrimination
  • Search Flashlight
  • Display Type
  • Backlit Display
  • Volume Control
  • Headphone Jack
  • Bluetooth Compatible
  • Interchangeable Headphones
  • Battery Type
  • Battery Quantity
  • Battery Life (hr)
    5 to 10 Hours
  • Waterproof
  • Rechargeable System
  • Exclusive Features
    Discrete Elimination Mode, Multiple Frequency Technology

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