Jump to content

Recommended Posts

Hi all! I'm new to metal detecting, and am looking to upgrade my machine soon. I got into detecting in September, when I got my harbor freight 9 function detector. I've had a lot of fun and have made some great finds. However, with all the clad and silver I've found, I've been thinking of upgrading, that's when I started hearing about the simplex.

MY first question is if I buy a simplex, how do I get the battery replaced if it ever goes bad? What about after the warranty expires? Am I correct in my understanding that it's internal and has to be replaced by nokta? Is it possible to replace the battery myself?

Second, is about coils. Is it possible different coils will be available in the future?

Finally, headphones. Is it possible to buy the base model now, and buy noktas wireless headphones later? I currently use some cheapy ear buds, but want to be able to upgrade later, so want to be sure and get the correct variant. 


Link to post
Share on other sites

If the battery failed under warranty you would send it in to be replaced under warranty. If it fails down the road you would send it in and pay to have it replaced. No price has been announced for this. It’s obviously not impossible to do it yourself, but probably not advisable.

It has already been announced on this forum that more coils are forthcoming, as has the fact you can add the wireless headphones later. Aftermarket phones will not work, only Nokta/Makro phones. Check out previous threads on the subject for details, but there is not much to know beyond that.

Link to post
Share on other sites

I am very confident Nel will release coils for it, they've released coils for the other Nokta detectors.  (I always just say Nokta, the name is too much of a mouthful for me) 🙂

If Nel do make Simplex coils the users are in for a treat with a massive range of coils.

Fortunately Nokta don't lock down their coils with security chips so the third party manufacturers can make coils for their detectors.

Link to post
Share on other sites
4 hours ago, Mr Swing king said:

Finally, headphones. Is it possible to buy the base model now, and buy noktas wireless headphones later? I currently use some cheapy ear buds, but want to be able to upgrade later, so want to be sure and get the correct variant. 

Couple things here.  Note that if you use third party wired phones, you will need to use the Nokta proprietary headphone connector adapter that is included in the base wired Simplex model package and the jack on that adapter fits a 1/4” plug, so if you are using wired cell phone style buds, you will need yet another mini jack to 1/4 inch plug adapter in line.  Ugh.

Anyway, I highly recommend going ahead and getting the wireless package now, not only because wireless phones are a game changer in convenience, but also because it will likely save you money should you decide to eventually go wireless down the road because you are likely to be able to find a dealer who can give you a hefty discount on the wireless Simplex package vs. paying full price or close to full price on an a la carte wireless headphone buy as as a stand-alone accessory later.  

One caveat though, unfortunately, Nokta decided NOT to include their $25 wired headphone adapter in the wireless Simplex package though it IS included in the wired package (which makes sense because you need to supply your own wired phones).  So if you get the wireless Simplex package and want to use wired phones with the Simplex, for example, in rainy conditions (the wireless phones are not weatherproof, though by design you can use a rain hood while wearing them) or as a backup in the event your wireless phones’ battery drains, you have to spring extra for the adapter or get a pair of compatible wired Nokta phones (like their waterproof model).

Regarding rechargeable lithium ion batteries.  I have been using them in multiple detectors and detector accessories for the last 5 years and have not yet had the need to replace one yet.  Embrace the convenience of that technology and rest assured that you are covered by a warranty in the mean time.  Since you purchased your first detector a mere 3 mos ago and are now seriously considering upgrading, it is highly likely you will be moving on to the next best thing before your Simplex warranty runs out (2 years) and almost certainly before your Simplex battery dies of natural causes.

Vendor replacement of such batteries outside of the warranty period usually runs in the ballpark of about $35 to $50 dollars depending on the material cost of the battery.

Anyway, that’s my 2 cents of advice and info.  GL

  • Like 3
Link to post
Share on other sites

The Simplex+ battery is Lithium Polymer (LiPo) not Lithium Ion, similar but not the same. The battery is visible in the tear down photos.

It looks like only four screws holding the control box together unlike the Equinox, which is sealed. However, it appears the access to those screws is under the face plate/display so I guess it will boil down to how easy it is to pry that off without doing damage.

  • Like 1
Link to post
Share on other sites

Hello, and welcome to the forum! Please give us some info about yourself in the meet and greet!👍

I think the Simplex+ will be a significant upgrade to your Harbor Freight detector! You might also consider the Minelab Vanquish, depending on your needs!

But i am curious what the HF  looks like, and what kind of finds you made with it! Was it dig everything? Etc...👍👍

Link to post
Share on other sites
  • 2 months later...
On 12/13/2019 at 2:13 PM, Steve Herschbach said:

The Simplex+ battery is Lithium Polymer (LiPo) not Lithium Ion, similar but not the same. The battery is visible in the tear down photos.

It looks like only four screws holding the control box together unlike the Equinox, which is sealed. However, it appears the access to those screws is under the face plate/display so I guess it will boil down to how easy it is to pry that off without doing damage.

I did tear down my Simplex. The faceplate  hiding the crews is a very thick decal, You do need to be careful prying it off. Separating the case halves without proper tools and not starting at the right place can damage the plastic case edges. It's not difficult otherwise to replace a battery. If the Simplex is still under warranty and has battery issues, let the service center do the job. If out of warranty, the choice is yours to make an attempt and possibly damage the circuit board or again have the Service Center do it. Added note, there is nothing a consumer can adjust on the circuit boards to increase performance, it is all done by computer processor software. So please, to  those who think this is a tinkerable detector, think again. Stay out of the internals....this is not a Tesoro.


  • Like 2
  • Thanks 1
Link to post
Share on other sites

Interesting they stuff a couple of silica gel packets in there 🙂

Looks a tiny little unit.


Link to post
Share on other sites

Looks like you could load the Equinox software on there and you'd have an Equinox, make it dual boot, and you could run either 🙂

  • Haha 2
Link to post
Share on other sites

Very cool pics. I was thinking the battery would be twice that size and put into the shaft of the grip. Interesting. 

Mr Swing King looks like its been awhile since this was posted. If you still looking for a simplex id be glad to help ya get one. 

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Similar Content

    • By Steve Herschbach
      Hitting a NEW PERMISSION, fields surrounding a Manor House with the Nokta Makro Simplex, Minelab Vanquish and Garrett Apex
    • By Jeff McClendon
      I have not been very kind to the Nokta Makro Simplex. I was able to use one for three "normal" coin and jewelry baseball/soccer/football field hunts here in Colorado USA. At the time (March 2020) the only three tone mode was the original Park mode. I was not impressed. I was deliberately hunting for surface to 6" targets or recent drops. I was hoping for good audio and numerical target ID on solid sounding targets. Unfortunately the fixed tone break in the original Park mode was set way too low for gold jewelry and USA coins which basically made any shallow to 6" low to mid conductor sound like a clad dime, copper penny, clad quarter or silver coin or jewelry and have high conductor target IDs too due to single frequency up averaging in the high mineralization I was hunting in. Depth was very poor also. The only 6" targets I dug were large can slaw which read up in the 90s. That was with the sensitivity maxed out, ground balanced properly and with Nokta Makro wireless headphones. I did find some shallow clad which read accurately as high conductors but I really had no idea what I was about to dig otherwise. It acted like every other single frequency detector I had used on the highly mineralized ground I hunt on most of the time no matter what brand or how much they cost. I moved on and wrote the Simplex off, along with the Racer 2 and the Multi Kruzer/Kruzer which behaved similarly in my hunting areas just like all the other single frequency VLFs I tried..
      I recently started testing some other detectors that I had never tried like the Whites DFX and V3i, paid more attention to my MX5 and Nokta Makro Gold Kruzer and finally lost it for good with the XP ORX. I was looking for a detector besides the Minelab Equinox and Vanquish that might have an edge over them in certain scenarios or at least a different but very applicable use as a gold jewelry hunter. I love the Equinox and Vanquish and they have been very good to me and fit my hunting style. I also like detectors from other brands too.
      The Whites multi freqs got killed by EMI and ground mineralization here, unfortunately and very unexpectedly. The MX5 as much as I really like it is just too slow, can't handle the mineralization here and can't tell the difference between a US nickel/pulltab and a US clad quarter at 3" depth. I absolutely love the XP Deus and XP ORX for ergonomics and for adjustability. I really do not like their audio. I also really do not like how they too can't tell the difference between a US nickel/pulltab and a US clad quarter at 3" depth or more in the dirt I often hunt in. For gold prospecting the Orx is fantastic. So is the Nokta Makro Gold Kruzer but the Gold Kruzer has three tone audio AND adjustable iron audio, plus a boost and fast single tone mode with discrimination and an all metal mode that work great for prospecting. The Gold Kruzer is an incredible micro jewelry hunter too and it is fully waterproof and made like a military tank.
      So, after reading about the Simplex updates, already having the green wireless headphones and needing a wired headphone jack cable for my Gold Kruzer I thought I would revisit the Simplex with V2.77 software. Plus, if the rumors are true, the Simplex form factor may be used for Nokta Makros next and greatly anticipated SMF detector.
      I am really glad I tried the Simplex again. The new Park mode (Park 1) is a huge improvement with its more USA coin and gold jewelry hunting friendly tone breaks. The boosted sensitivity, mute function (and thank you Nokta Makro for letting the pinpoint button double as the mute button instead of the power button which was used by another now defunct famous detector manufacturer and resulted in turning them off completely repeatedly during hunts even on their latest models after years of complaints) and the very good mineralization bar among other fine improvements make the Simplex an even better detector for basic detecting use.
      I have made two trips to the same baseball/soccer/football field complex as before with the 2.77 version Simplex. These fields have two or three targets per sweep so I would label that as fairly spread out target wise as opposed to dense type aluminum trash. The new mineralization bar was 1/2 to almost completely full whenever I checked it. Wow, this detector has possibilities. In Park 1, with nothing discriminated, iron audio on setting 1, sensitivity on five or six of seven, and properly ground balanced the Simplex was able to do something very basic which it could not do before. It could definitively identify low and mid conductors that were easily down to 4" deep. The only detectors that I have used that could do that consistently were the Equinox and Vanquish.
      I am hunting these fields for : gold jewelry, silver jewelry, silver coins and modern US coins in that order of importance. I want to know if I am about to dig a low, mid or high conductive target. I don't want to waste my time digging a 3" pull tab that sounds and reads like a copper penny or clad dime. So, all of the pull tabs and evenly shaped can slaw that I dug along with several US nickels had solid, dig me tones that put them squarely in the low to mid non-ferrous conductive range and they had tight numbers that only wavered a few digits between 22 and 55 depending on size and depth. There was some up averaging but not completely out of the appropriate tone bin. That is all I need. I will be digging most of those targets no matter what they turn out to be. US zinc pennies and larger beaver tail ring pull tabs read almost at the mid tone/high tone break so that makes the blended mid/high tone a good identifier. All of the other high conductor targets are dig me no brainers on the V 2.77 Simplex if they aren't too deep. Like many have said, good quality undamaged targets that aren't too deep sound fantastic on the Simplex with the newer software. Jagged, misshapen aluminum and ferrous targets have widely varying tones and target ID numbers. So far, I have only dug one very rusty steel crown bottle cap. So, I am extremely impressed with the vastly improved performance and I haven't even tried the smaller coils in dense aluminum or iron trash yet.
      My only negative and it is quite a negative is the ridiculous lower shaft on the Simplex I received from a well known vendor. This Simplex was a basic model with no wireless headphones. It was a return and I purchased it for substantially below the new price. It looked new to me but maybe the lower shaft issue was the reason for the return. It should have been replaced. Watch this video of a Gold Kruzer, Vanquish and Simplex comparing lower shaft flex.
      I hope there is some kind of solution for this. I know there is some kind of insert that goes into the end of the lower shaft. I don't think it will help this flimsy, too easy to bend plastic toy shaft however.
    • By Sven1

    • By Steve Herschbach
      Nokta/Makro Simplex+ User Manual, 2.23 MB pdf file, 24 pages
      Nokta/Makro Gold Kruzer Data & Reviews
      Nokta/Makro Metal Detector Forum
    • By Mr Swing king
      I have loved my simplex, and been using it almost every day since I got it. Also finaly finding gold ( now that I know what I'm watching for. I'll post pictures eventually).
      Anyway I was thinking to myself, how could they make a second generation simplex better? I know it's a ways off, but I bet nokta has already been thinking about this. So I wanted to start a thread about features you'd like to see on the next one?
      I'll start. When night hunting, the light on the back seems to be either not quite bright enough, or it's at the wrong angle, and can't use it well to dig. No problem, I've got a headlight. 
      What if on the next one, they had a sensor that felt the detector be laid down, and switched on a brighter higher angle set of lights to illuminate your digging when in night mode?
      Also multi frequency would be killer, even if it had to be a super simple featureless dumbed down machine, at least around here.
    • By Duncan c
      Hello having some issues with simplex false signals not picking up coins gold chain have had the coil replaced and detector is no better also detector sounds as if it's going to explode the vid numbers and the noise it makes, sound like high revving car engine. And it losing signal and going blank but it does show some vid numbers, had this simplex for 2months now really annoyed all those packed beaches and nothing to show for it and summer is almost over, wow and now nokta wont respond to my emails.
      Dont know what to do been so stressed.
      I have videos on you tube showing these problems, titled nokta simplex coil test and check my other short videos.
  • Create New...