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. |
Teknetics Delta 4000 Underwater Metal Detector Review
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.
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
Compare prices
2 retailers compared · Checked on October 31, 2026
Lowest price right now
$189
We only list shops we would buy from ourselves
This price grid only shows retailers we trust: shops we vet on returns, delivery, and what real customers say about them.
All prices are checked daily.
We earn a commission from some of the shops when you buy through these links, at no extra cost to you.
DIVEIN's take
Why buy from Amazon?
Amazon has a documented Prime delivery program that covers millions of items, and that is the most concrete order-related support behind buying here.
Worth knowing
Some customers report slower replies or needing more follow-up than expected when they asked for help after ordering. If an order needs post-purchase support, that part of the experience is not always smooth.
Some customers also report delivery problems after ordering. That keeps follow-up and delivery as the areas to watch if you place the order here.
Accepted payments
Discover
Checkout on amazon.com is served over a secure SSL (https) connection.
Shipping & returns
Free shipping on eligible orders meeting the minimum threshold. Ships from Amazon fulfillment centers or third-party sellers, depending on the listing; seller-shipped items may take longer. Most items sold on Amazon.com may be returned within 30 days of delivery; exceptions apply.
DIVEIN's take
Why buy from Lowe's?
Lowe's sells through its own brand store, so the order begins in the brand's sales channel. If you want that direct brand purchase path, this is the store that provides it.
Worth knowing
Some customers report slower replies or more follow-up than expected when they needed help after ordering. Some also report delivery problems after ordering. Check the order and tracking details before you rely on a specific delivery date.
Teknetics Delta 4000
Compare prices
2 retailers compared · Checked on October 31, 2026
Lowest price right now
$189
We only list shops we would buy from ourselves
This price grid only shows retailers we trust: shops we vet on returns, delivery, and what real customers say about them.
All prices are checked daily.
We earn a commission from some of the shops when you buy through these links, at no extra cost to you.
DIVEIN's take
Why buy from Amazon?
Amazon has a documented Prime delivery program that covers millions of items, and that is the most concrete order-related support behind buying here.
Worth knowing
Some customers report slower replies or needing more follow-up than expected when they asked for help after ordering. If an order needs post-purchase support, that part of the experience is not always smooth.
Some customers also report delivery problems after ordering. That keeps follow-up and delivery as the areas to watch if you place the order here.
Accepted payments
Discover
Checkout on amazon.com is served over a secure SSL (https) connection.
Shipping & returns
Free shipping on eligible orders meeting the minimum threshold. Ships from Amazon fulfillment centers or third-party sellers, depending on the listing; seller-shipped items may take longer. Most items sold on Amazon.com may be returned within 30 days of delivery; exceptions apply.
DIVEIN's take
Why buy from Lowe's?
Lowe's sells through its own brand store, so the order begins in the brand's sales channel. If you want that direct brand purchase path, this is the store that provides it.
Worth knowing
Some customers report slower replies or more follow-up than expected when they needed help after ordering. Some also report delivery problems after ordering. Check the order and tracking details before you rely on a specific delivery date.
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