Teknetics Delta 4000 Underwater Metal Detector Review

Torben Lonne
By
Anastasia
Staff Writer at DIVEIN.com
Ever since Anastasia started testing different recipes for smoothies, she’s also discovered yoga and never stopped learning more about it. She went all-in on this health...
Torben Lonne
Editor and Co-founder at DIVEIN.com
Torben traveled to South East Asia for scuba diving and never really stopped his search for new adventures. His affinity for gear that works and his...

Where to buy

The Delta 4000 underwater metal detector created by Teknetics can become your ride-or-die when scuba diving somewhere in Indonesia. Having implemented a 3-tone adjustable audio ID, an impeccable sensitivity, and an overload alarm system, the manufacturer took it upon himself to provide you with the high-tech metal detecting device that would exceed your expectations.

No matter if you are searching for precious gold, relic items, or antique coins, the 0-8-inch depth indicator will help you locate the target in a span of minutes.

The 9-volt battery allows you to run the device for up to 25 hours, which is great for when you are far from places where you could charge it. The LCD display is quite easy to read thanks to the 2-digit numerical target ID system that keeps track of the metals located close to you.

Basically, you are covered with the multitude of features the machine is equipped with that work together to provide you with the best results.

About this review

To help you find a Underwater Metal Detector that will fit your needs, we’ve tested, researched, and reviewed the best ones available today.
We test both in the water, diving in various conditions - and in our lab - so we can give you accurate answers on quality, performance, and the overall value.

Read about our test of Underwater Metal Detectors

Recommended in: Underwater Metal Detector

Things we like:

  • The waterproof search coil can be fully submerged into the water without getting ruined
  • The arc stand helps to prevent damage associated with the detector when it is set on the ground

Things we don't like:

  • The level of sensitivity is not high

Specs & Features

Coil Size: 8 inches
Operating Frequency: 7.8 kHz
Battery Type: 9V alkaline
Dimensions: 40 x 11.2 x 6.5 inches
Weight: 3.5 lbs.
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