Teknetics Delta 4000 Metal Detector

Includes $32 in FREE Accessories!

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Product highlights

  • Frequency : 7.8 kHz
  • Warranty : 5 Year Limited
  • Total Weight : 6.5 lbs (2.95 kgs)
  • Discrimination Control : Eliminate All Trash and Junk Metals
  • Search Modes : Discrimination Mode, All Metals Motion Mode
  • Sensitivity Control : Adjust Detector to Changing Ground Conditions at your Command
  • Includes pinpointer and headphones
Best for
Best for Coin icon


Best for Gold icon


Best for Relic icon


Best for Beach icon


Best for Advanced icon


Best for Beginner icon


Included items
this products includes a set of accessories listed below, worth $32.98
Product Description

Teknetics Delta 4000 Metal Detector with Pinpointer and Headphones
with 8" Search Coil Plus FREE Metal Detecting and Treasure Hunting Accessories

The Teknetics Delta 4000 metal detector features a large, crystal clear and easy to read, identification meter. This new design enables even the novice of detectorists to see the treasures they’ve found before they begin to dig! The Delta metal detector is the latest and greatest from the world-renowned Teknetics metal detector brand. Just released - the Delta boasts state-of-the-art detecting features housed in the most modern of detector designs. This metal detector includes a pinpointer and headphones in the box!

The large control housing features push-button controls, numerical depth readout, an intuitive menu system and a running depth indicator. These tools combine to help even the most novice detectorist hunt like a professional! Advanced features include adjustable sensitivity, discrimination by categories, a two-digit numerical target identification system, and two search modes: Discrimination Mode and All Metals Mode.

  • Manufacturer Teknetics
  • Manuals

    Instruction Manuals

  • Quick Look Newly designed, this Teknetics Delta 4000 metal detector with a large digital screen and search/sensitivity control modes is a great investment.
  • SKU 622-DELTA
  • Product Dimensions 28.25x10.00x6.25
  • Manufacturer SKU DELTAGWP
  • Product Type Metal Detectors
  • Best for Beginner, Coin, Relic
  • Factory Included Accessories
    • Pinpointer
    • Headphones
    • 8" Search Coil
  • Warranty Yes
  • Detector Type All-Purpose
  • Interchangeable Search Coil Yes
  • Technology VLF Single Frequency
  • Arm Rest Fixed
  • Arm Rest Strap Yes
  • Adjustable Shaft Yes
  • Assembled Length Max (in) 50.5
  • Assembled Length Min (in) 40.5
  • Apps None
  • GPS No
  • Audio Tones Yes
  • Depth Indication Yes
  • Control Box Mount Standard
  • Frequencies 7.8 kHz
  • Number of Frequencies 1
  • Programmable Target Id Yes
  • Target Id Segments 99
  • Target Id Yes
  • Threshold Fixed
  • Discrimination Adjustable
  • Pinpoint Mode Yes
  • Ground Balance Fixed
  • Vibration Mode No
  • Search Modes 3
  • Search Mode Types All Metal, Discrimination, Pinpoint
  • Search Flashlight No
  • Display Type LCD
  • Backlit Display Yes
  • Volume Control No
  • Headphone Jack 1/8"
  • Bluetooth Compatible No
  • Interchangeable Headphones Yes
  • Battery Type 9-Volt
  • Battery Quantity 1
  • Battery Life (hr) 20 to 25 Hours
  • Waterproof Non-Waterproof
  • Rechargeable System No
  • Exclusive Features 5 Segment Depth Indicator, Notch Control, 5 Level Depth Readout, Intuitive Menu System, Over Load Alarm System
More Information

Teknetics Delta 4000 Metal Detector

Warranty: Not 2 Years or 3 Years, but a Great 5 Year Warranty!
Why? Because We Make Them Better!

The Teknetics Delta 4000 Metal Detector features a large, crystal clear and easy to read, identification meter. This new design enables even the novice of detectorists to see the treasures they've found before they begin to dig!

Teknetics Gamma 6000 This detector comes brand new, in its original box and with a full manufacturer’s warranty. Purchase includes the ALL NEW Teknetics Delta metal detector, an 8” open-face searchcoil system, and instruction manual.

The Delta metal detector is the latest and greatest from the world-renowned Teknetics metal detector brand. The Delta boasts state-of-the-art detecting features housed in the most modern of detector designs.

The large control housing features push-button controls, numerical depth readout, an intuitive menu system and a running depth indicator. These tools combine to help even the most novice detectorist hunt like a professional! Advanced features include adjustable sensitivity, discrimination by categories, a two-digit numerical target identification system, and two search modes: Discrimination Mode and All Metals Mode.


The Delta transmits a low frequency of 7.8kHz to alert you to literally every type of treasure buried beneath the surface. A pre-set Ground Balancing feature with the bonus of fully static, push-button pinpointing capability will accomplish three things at once.

First: when in the pinpoint mode the detector will automatically center the target.
Second: It will increase the audio tone when you are over the target.
Third: the Delta will indicate the depth from over 0 to over 8 inches.

The Delta comes with a real time “running Depth Indicator” that will show you the depth of all detected targets before you pinpoint.

Two-Digit Numerical Target ID System makes identifying buried target fast and easy! With the Delta, accuracy is improved on all targets and even those older and deeper coins.

There are a total of six discrimination categories that will allow the user to quickly make changes to the factory discrimination patterns. When in the field you simply select the discriminate mode and then use the up or down arrow button to make your change.

Only one 9 Volt battery is required to operate this new, impressive and affordable machine and it won’t just die on you in the field – it features a battery life indicator to make sure you’re prepared to treasure hunt for hours on end!

Technical Specifications:

  • 5 Year Warranty
  • 8" Search Coil
  • Frequency : 7.8 kHz
  • Weight : 6.5 lbs (2.95 kgs)
  • Search Modes : 2
    • Discrimination Mode, All Metals Motion Mode
  • Tone Discrimination
  • Number of Tones : 3
  • Battery Life Indicator
  • Adjustable Sensitivity
  • Intuitive Menu System
  • Preset Ground Balance
  • Overload Alarm System
  • Running Depth Indicator
  • Numerical Depth Readout
  • Discrimination by Categories
  • Push-Button Control Interface
  • Fully Static Push-Button Pinpoint
  • Two-Digit Numerical Target ID System
  • Single Notches Selectable by Categories

Customer Reviews

Average Experience Rating


4.9 average of 15 reviews


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    • ★★★★★ Great little intermediate detector.

    Review by Painless on March 9, 2020

    I have owned the big guns. The all terrain detectors, expensive and cheap. I bought my first from Kellyco in 1985, the next 3 over the next 3 decades. (From Kellyco, also). In 2016, I stepped away from Garret to this little unit.
    My world has gone from underwater treasure hunting, to beach combing to coin shooting. The Delta works great, and is much lighter than my last Garrett. (I got old). Plus, it doesn't cross talk with my brother in law's Ace 300.
    • ★★★★★ Quality product

    Review by Barbara on September 25, 2019

    I have not used the Teknetics Delta 4000 Metal Detector yet. However I have examined it and its attachments and instruction booklet and it appears to be a quality piece of equipment. I am excited that it can distinguish between metals and look forward very much to using it. Kellyco had the most competitive price for this model that I could find, making it affordable for me, whereas otherwise it would not have been. I chose this metal detector because the reviews were outstanding compared to the other metal detectors I saw online. Kellyco delivered it faster than I expected. I called 15 minutes after their advertised closing time with a question on the day I purchased it. I immediately got someone answering the phone who was eager to help me. I am very impressed by that level of customer service.
    • ★★★★★ Great company

    Review by Rick on September 9, 2019

    Great doing business with you, just learning my detector, didn’t get my $10 off after putting in the code, take10, didn’t get the other accessories that we’re supposed to come with, guess that didn’t apply to me, probably will do business again if I get what is advertised
    • ★★★★★ Great Product

    Review by ladymae7294 on August 20, 2019

    I've used my Teknetics detector for about 2 years now and I love it! Pretty accurate too, plus I have the pin pointer too. I would recommend this product to beginners and pros.
    • ★★★★★ All Metal Mode

    Review by ophirtreasures on June 4, 2019

    Recently received the Delta 4000. So far i am really pleased with this detector. For the price it has many features found on more expensive detectors. It is easy to set up and use. I primarily use it in wooded areas and it is a absolute beast in the all- metal mode. The performance is fantastic. In the all- metal mode the pinpointing is spot on. I am finding more targets even in sections previously searched. The folks at Kellyco were very polite and seemed really pleased i was doing business with them. Thanks so much, William Payette, Rochester, NY.
    • ★★★★★ Great Value

    Review by KMonster on October 30, 2016

    Have had my Delta 4000 for around four years, and love it. By now I can usually tell how deep a target is by the combination of tone and the usually-accurate depth indicator. This saves a lot of time, as often I don't dig at all if the detector is showing very near surface, I just bend and feel around with my fingers. Other times the indication means really deep, so I save time by digging a big plug out, instead of just a bit at a time. The pin-pointer feature is also fantastic and saves digging time and frustration. It can also be used to figure out weird signals--sometimes the pin-pointer will show that there are actually two very close targets, so instead of maybe skipping a flip-flopping signal that indicates junk, it might be junk beside something good. The pinpointer can also be used post-digging to see which side of the hole the target is on. Sort of a 3D usage, by holding the coin at an angle. Max coin I've found is about 10 inches, though that's rare. And a coin at that depth will give an "iffy" signal in my experience until I dig further/broaden the soil to get it closer.

    It's lightweight, well balanced, and ergo-dynamic, with the control pad easily reached with thumb. Also only uses one battery, while a lot of other detectors use two. From my earlier Bounty Hunter IV detector which used two--they both last the same time between changes, 20-26 hours (with headphones). So that's half the cost of batteries over the detectors' lifetime, might add up!

    Finally, there's the "cherry-picking" mode, which I guess all mid-high detectors have, but the Bounty Hunter IV for instance didn't. When tired at the end of a session, I notch out all responses below "zinc"--so pretty much the only signals I hear are silver or a coin (or some weirdo thingamabob). This mode is also great for tough to dig spots like very dense turf, when you don't want to spend ten minutes cutting through sod (or spending time evaluating an iffy signal) just to find a pulltab. The Bounty Hunter was a terrific entry-level, and this I guess a terrific entry level B or low/mid range detector. But I love it so much that even if I win the lottery I might not "upgrade" until it breaks down. And no sign of that--it's very sturdy and reliant.

    It does take a learning curve; at least for me took months to really feel what it was telling me. I'd suggest not using discrimination modes or other selective stuff at first--just put it full out and dig every signal, so you can first use the indicators and tones alone to eventually make a good guess at what might be there, and also which targets/iffy sounds probably aren't worth it. Then you can get fancy with the options.

    Two cons: This hasn't happened recently, but sometimes before it would make a constant beep-beep noise even if sensitivity were turned down. While swinging if it got a good hit it would go back to normal but all times in-between the constant beep-beep. I :think: this mostly happened near hefty power-lines or maybe underground cables, not sure. But still, it's a relatively minor and rare problem and not enough to knock it down from my score of five stars. The other con is I guess normal for non-beach-specific detectors, in that sensitivity has to be turned down on wet sand or it'll give false signals.

    Overall--terrific detector--affordable (especially with just one battery), well-made, good functions to select per session or area, light, and after awhile you can even predict sometimes with good accuracy what a particular tone/solidity-of-tone/indicator will bring.
    • ★★★★★ Review by Roadsidewarrior

    Review by Roadsidewarrior on March 25, 2016

    This is the best detector I've ever had. I've tried almost all the name brands. I really like this better than the Garrett Ace Series. I've even had the Ace 350. This has more tone ID's, better variable tone and volume pitches when pinpointing, numerical and categorical display value for signals, which gives more info. For example, looking at the number rating for a pull tab, it is very close, but slightly different than a nickel, but if another detector doesn't have that, you don't know if it's a pull tab or a nickel without digging, like on the Ace Garrett. The tones on the Ace always bothered me and sound like Wheel of Fortune game show, but this detector is much more practically designed, and try Googling the "design team of the Teknetics detectors" to see what I mean. It is a work of art and I am a convert to Teknetics. Please really consider Teknetics, and I think you'll be happy and more confident in your detecting because the company is putting out the best product with the best technology for the money, very well laid out machine.
    • ★★★★★ Teknetics Delta 4000 Surprise

    Review by James F on December 14, 2012

    Today I received my new metal detector from Kellyco and found it to be very easy to assemble, it only took about 10 minutes to complete without even looking at the manual. OK I did read it thoroughly last night, I downloaded it from the Kellyco Website. After assembling the thing and unpacking all the goodies, I went out the door of my hobby shop and started around the side of my building. Leaving the unit at the default mode at startup (which is discrimination mode), I bumped the sensitivity up until I started getting chatter, then reduced it one bump at a time until it settled down. I started swinging and after a dozen or so swings I got a rather high pitched signal. Looking at the readout it showed as a Quarter, it said 3-4 inches. I said what the hay I'll dig it just to see.

    Lo and behold I found a 1976 bicentennial quarter in less than 5 minutes of searching. Within 20 minutes of taking it from the Fed-Ex drivers hands. After only tinkering around with a unit which had been purchased from Wally World 5 years ago and never finding anything but bottle tops, this Teknetics Delta is a world apart. I had several coins laid out by my son in the yard and I found each and every one of them and the unit identified all of them correctly. I marked a zinc object at 6 inches and dug it, It was a wing which came from a small airplane I remember playing with as a child. The wing was at the depth of the digging tool which is approximately 6 inches.

    I cannot compare this unit to any other unit since I probably (truly) didn't know how to set the unit I had before. I will say with the simplicity of using this unit right out of the box, the correct identification of objects found and proper depth determinations of the unit, it has given me a confidence that I have purchased a very good machine which I have immediate confidence.This in turn has given me more desire to go out and find history.

    • ★★★★★ Awesome!!

    Review by Jake G on October 11, 2012

    Received my Teknetics Delta 4000 today, put it all together. WOW. I metal detected my yard for over a year with an old Bounty Hunter. I turned up a lot of junk (never any coins). Right out my back door I got a half dollar 6" down. After an hour of hunting I was $1.31 richer! Very pleased with this detector! Highly recommended.
    • ★★★★★ Review by Randall A.

    Review by Randall A on January 15, 2011

    The Delta is my first detector. I spent hours reading numerous reviews and comparing features of other detectors, before purchasing the Delta. I can save you some time, if $300 is what you have to spend, buy the Delta. It is very light, I have shoulder issues and I remain pain free after several hours of swinging. I love the fact that it only uses one 9 volt battery and will run for 20+ hours on a new one. Pin pointing is spot on and it has a 5 year warranty! Target ID is good and the depth is surprising. I have found coins at 8+ inches on numerous occasions (with the stock 8" coil). My finds have ranged from civil war buttons to silver and jewelry too. If I had it to do all over again, I would still buy the Delta. If I upgrade, it will be another Teknetics and I will keep the Delta as a second machine.
    • ★★★★★ Review by Roger B.

    Review by Roger B on December 16, 2010

    I bought my Delta 4000 about 5 months ago and have been very happy with it. This is the second detector I have owned. The reason I got the 4000 was it had all the features I was looking for at a very affordable price. The features I wanted were a target ID readout and a pinpoint feature, which my old detector didn't have. Both of those features make it very easy to ID and pinpoint your target with minimal digging. It was easy to set up and within about 30 minutes I had the hang of it and was already starting to find coins. I am mostly a coin shooter and have found in excess of 450 coins since getting the 4000, several silver coins and my oldest coin being an 1889. I have also found 3 rings and several other interesting finds. I would recommend the 4000 to anyone looking to get into the hobby at a very affordable price. Also with all the extras thrown in by Kellyco such as the headphones and the hand held pinpointer and everything else you can't beat the deal. I would definitely give it 5 stars.
    • ★★★★★ Review by Jesse

    Review by Jesse on April 13, 2010

    It is very well built and a great detector for the newbie or the pro. It is easy to set up and operate. It is also so light to swing. The pinpoint is spot on. It is really a great detector for the money. I would recommend this to any and all. If it is there, you will find it with the Delta!
    • ★★★★★ Review by John F.

    Review by John F on November 22, 2009

    I purchased a Delta 4000 detector in Oct. 2009. I went with Teknetics because I had a 1988 Teknetics Eagle that was great. I have been detecting beaches for the last 3 weeks. It’s almost like this detector reaches out and grabs the coins. It won’t work in saltwater or wet sand but it’s a killer on dry sand. I have found dimes at 10 and 11 inches. The pin pointer works great. I have been doing this since 1980. I know this is not the most expensive detector and I think that a lot of these detectors are about the same but this one is so light that I can swing it all day. But you will be doing more digging with this one. I had a headset that was received broken from shipping. Raul from Kellyco was right on it.
    • ★★★★★ Review by Brion

    Review by Brion on October 3, 2009

    I just bought this detector last week and it is amazing. The depth is great on it. My small skinny digger picks up at 10 - 11 inches, quarter 8 - 9 inches, dime 7 - 8 inches. It uses both VDI and target id which so far has been correct. The pinpoint is a little hard to use at first because it was so different but I quickly picked up on it. It is very light to use and easy to swing. I found a dime, nickel, quarter, car parts, etc with it so far. I haven't used it in a historic place yet. The package this comes with includes headphones, pinpointer, carrying bag, etc and more. It was well worth the money. I couldn't believe my eyes with all the stuff it came with at such a low price. I recommend buying this detector.
    • ★★★★★ Review by Billie H.

    Review by Billie H on April 16, 2009

    I recently purchased the Teknetics Delta from Kellyco. After a much anticipated wait, it finally arrived! I immediately put it together and took it in my backyard for some fine tuning. I was leery when I first bought the detector because I am an avid Garrett fan (still am). I turned on the detector and started swinging. I was amazed at the light weight. I could swing this detector around all day!! I found 9 pennies, 1 dime, and 2 quarters. Every target was accurate in the ID and the target depth. I highly recommend this detector and Kellyco for any future purchases.
Questions and Answers
  • Posted On: 2/23/2021 By: Stephen LYONS

    Q: Hi,Iowned the whites 6000 di for years.I like this one.Doesit perform as well as the 6000.need to know before buying it.price is right.

    A: I have not used the White's 6000, but I would have to say that with the advances in technology that it would perform better. It does look like we are currently out of stock on that detector though.

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