the batteries are checked automatically and audibly. Four or more tones indicate the batteries are very good, two tones indicate the batteries are adequate. One tone or no tone indicates the batteries should be replaced.

Battery Replacement:

The batteries are located inside the electronic housing with access at the rear of the housing. To access the batteries, unscrew the battery cap at the rear of the detector housing by hand; DO NOT use tools. The o-ring should remain in the control housing while the battery pack slides out. When installing batteries ensure that the correct polarity is observed. Re-install the battery pack by placing the contact end of the pack in the housing with the contacts down. Verify that the o-ring is well lubricated and free from debris. Add a little silicone grease or petroleum jelly if necessary. Re-install the battery cap, hand tightening it until it is flush with the housing and the two index marks are aligned.

Note: Always use high quality batteries such as Alkaline or nickel metal hydride in this detector. And, always remove them from the detector and the battery holder when storing the detector for long periods.

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SEARCHCOILS: The Sea Hunter Mark ll has two searchcoils available for its use.

The 8” searchcoil, which provides excellent depth and good scanning width, is the most popular size used for general searching in all areas. This searchcoil should be used for your primary searching.

The 10 x 14” Elliptical searchcoil offers the ability to cover more area and search at a greater depth, particularly for larger targets.

Cautions:

1.If the battery compartment becomes flooded, remove the batteries immediately, rinse the compartment with fresh water and allow it air dry. The electronic compartment is factory sealed and should never be opened; the see-through “helmet-mask” on the front panel should remain free and clear from condensation. If the window ever displays moisture, contact the Garrett factory as soon as possible.

2.Before diving always examine the searchcoil and headphone connectors and the battery cap. Verify the battery strength by operating the detector for a few moments prior to field use.

3.Dive with extreme caution. Observe diving practices to lessen the risks of becoming entangled with the headphone or searchcoil cables. Ensure that the headphone vent holes are open prior to diving.

4.When using the hip mount configuration while diving, ensure that the belt will not interfere with equipment removal in the event of an emergency.

OPERATING RECOMMENDATIONS

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Garrett Metal Detectors SEA HUNTER MARK ll manual Operating Recommendations, Battery Replacement
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SEA HUNTER MARK ll specifications

The Garrett Metal Detectors Sea Hunter Mark II is a versatile underwater metal detector designed for treasure hunters seeking gold, silver, and other valuable items beneath the waves. With its robust features and advanced technologies, it has become a popular choice for both recreational and professional users.

One of the standout features of the Sea Hunter Mark II is its waterproof capability, allowing users to submerge the detector up to 200 feet (60 meters). This makes it ideal for beachcombing, diving, and exploring various aquatic environments. Its double-D search coil, which measures 10 inches, provides excellent coverage and depth detection, enabling users to effectively search larger areas for hidden treasures.

The Sea Hunter Mark II operates using pulse induction technology, which sets it apart from traditional inductive metal detectors. This technology allows the device to pierce through mineralized soils and sand effectively, making it particularly suitable for areas with challenging ground conditions. Pulse induction also minimizes sensitivity to saltwater, providing a stable performance in saltwater environments without excessive false signals.

Another notable characteristic of the Sea Hunter Mark II is its discrimination control feature, which allows users to differentiate between target types. This functionality is particularly beneficial when hunting in trashy areas, as it can help users eliminate unwanted signals from junk metal while focusing on potential treasures.

The device is equipped with a variety of user-friendly controls, including sensitivity adjustments and a visual LED target indicator. These features enhance the overall user experience by providing immediate feedback on the detected targets. The sensitivity control allows for fine-tuning to accommodate different searching environments, ensuring optimal performance.

In terms of design, the Sea Hunter Mark II is lightweight and ergonomically designed, making it comfortable for extended use. It also includes a comfortable armrest and a quick-release system, allowing users to easily adjust the length of the shaft for a customizable fit.

Overall, the Garrett Sea Hunter Mark II metal detector combines advanced pulse induction technology with user-friendly controls and a rugged, waterproof design, making it an excellent choice for those passionate about underwater treasure hunting. Its combination of performance and practicality ensures that treasure hunters can efficiently maximize their search efforts, whether on the beach or exploring the depths of lakes and rivers.
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