OKM Evolution NTX 3D Ground Scanner & Metal Detector

The OKM Evolution NTX is a German-built 3D ground scanner with a VLF search coil in one height-adjustable control unit. Live Sound works as a VLF metal detector for shallow coins, rings and jewelry, and 3D Scan records a measured grid that OKM's Visualizer 3D Studio turns into a color 3D image on the included Windows notebook. It has a 3.5 inch color touchscreen, weighs about 1.5 kg (3.3 lb) and sits in OKM's entry-level 3D group. It suits treasure and relic hunters who want to scan a suspected spot and check shallow signals with one machine. Our Evolution NTX collection holds the complete kit.

OKM Evolution NTX Overview

The OKM Evolution NTX combines OKM's ground scan sensor with a VLF search coil in one control unit, and you pick one of two operating modes from the main menu. Live Sound turns on the VLF metal detector for shallow metal objects such as coins, rings and jewelry, with an audio signal and a simple graphical indication on the screen. 3D Scan records a measured grid into the unit's 4 GB memory; you then open the scan in Visualizer 3D Studio Standard Edition, which shows buried objects in color as a 3D image so you can judge position, size and depth before digging.

The control unit adjusts from 540 to 810 mm (21.3 to 31.9 inch) to suit your height, and has a built-in speaker, Bluetooth audio and a rechargeable battery. OKM rates it for -10 to 60 °C (14 to 140 °F) at 5 to 75 percent air humidity and lists it as not waterproof; the protector case in the kit is waterproof and shock-resistant. OKM covers it with a 2-year guarantee. OKM also names the Evolution NTX as the successor to its Pulse Nova pulse induction detector, which OKM no longer manufactures.

Evolution NTX vs Fusion Light: Which Should You Buy?

Both sit in OKM's entry-level 3D group, and OKM gives both the same customer-find depth. The difference is what else they do and how you run them. The Evolution NTX has its own touchscreen and a VLF search coil, so it also works as a metal detector for shallow targets. The Fusion Light has no VLF coil: it pairs 3D Ground Scan with a Magnetometer mode for iron and runs from a supplied Android smartphone. If you want one unit that both scans and checks shallow metal, we recommend the Evolution NTX. If you only need 3D scanning and like a phone app, the Fusion Light is the lighter kit.

Evolution NTX, Best For:

  • Searchers who want a 3D ground scanner and a shallow metal detector in one unit
  • Old homesteads, ruins and reported cache sites where you scan first and check shallow signals on the same visit
  • Buyers who would rather read a screen on the unit than a phone or watch

Key Features in the Field

Live Sound is there to check shallow signals on a site you are scanning, not to replace a dedicated coin machine. 3D Scan answers a different question: where the ground changes over a measured grid. We never treat a Live Sound signal and a 3D anomaly as the same evidence, and the 3D image is a processed picture of sensor measurements, not a photograph.

When we set up a customer with a 3D scanner, the part that takes practice is not the software, it is walking the grid: the same line spacing, the same sensor height and the same pace on every pass. A sloppy grid gives a messy image no matter which scanner made it.

OKM does not publish a rated detection depth for the Evolution NTX. Its product page says customers have found objects down to 8 m (26 ft); that is a best case for large objects, and small items such as coins read far shallower. Soil and grid technique change the result, as our guide How Deep Do Metal Detectors Go? explains.

Where It Works Best and Its Limits

OKM lists treasure hunting, cavity detection and natural gold prospection as uses, and treasure chests, cavities and tunnels as detectable objects. The Evolution NTX suits a searcher who already has a spot in mind, such as an old homestead or a reported cache location, and wants an image of it before excavating. It is a dry-ground instrument, so rain ends the survey.

For covering parks, fields and beaches for scattered coins and jewelry, a conventional metal detector is lighter, faster and far less money. For targets that are not metal, such as foundations and voids, the OKM Gepard GPR ground-penetrating radar is built for that job.

Coils, Software and Accessories

OKM lists no interchangeable search coils or extra probes for the Evolution NTX. The VLF coil and the scan sensor are part of the unit, so coils made for other detectors do not fit. OKM's standard kit holds the control unit, a pre-configured Windows notebook, a USB flash drive with Visualizer 3D Studio Standard Edition, Bluetooth headphones with charging cable, a charger, a travel adapter set, a waterproof and shock-resistant protector case and a quick start guide. To run the software on your own computer as well, OKM's minimum is Windows 10, a 1.2 GHz processor, 2 GB of RAM, a 1920 x 1080 display and 250 MB of free disk space. For digging a scanned target, a pinpointer such as the OKM Fortuna XELA narrows the hole.

Compare OKM 3D Ground Scanners

FeatureFusion LightFusion ProfessionalRover UCRover C4Evolution NTXeXp 5500Delta Ranger
OKM groupEntry-level 3D ground scannerAdvanced 3D ground scannerEntry-level 3D ground scannerEntry-level 3D ground scannerEntry-level 3D ground scannerAdvanced 3D ground scannerMulti-technology treasure detector
Operating modes3D Ground Scan, Magnetometer3D Ground Scan, Live Sound (magnetometer)Magnetometer, Pinpointer, 3D Ground Scan3D Ground Scan, Magnetometer, Pinpointer, Mineral Scan3D Scan, Live Sound (VLF)3D Ground Scan, Magnetometer, VLF Metal DetectionBionic Stream, Ionic Stream, Magnetometer, 3D Ground Scan, Thermo Scan, Thermo Stream
Shallow metal coilNoneSRIS search coil, built inNoneNoneVLF search coil, built in14 x 10 inch VLF PentaCoilNone
Control and displaySupplied Android smartphone with OKM appSupplied Windows notebook; Live Sound through Bluetooth headphonesSupplied Android smartwatch with OKM app3.5 inch touchscreen on the control unit3.5 inch color touchscreen on the control unit8.4 inch touchscreen on the control unitSupplied Android smartphone with OKM app
Depth OKM gives (large objects)8 m (26 ft)21 m (69 ft)20 m (65 ft)25 m (82 ft)8 m (26 ft)25 m (82 ft)18 m (60 ft)
WeightAbout 700 g (1.5 lb)About 1 kg (2.2 lb)About 500 g (17.6 oz)Control unit about 1.5 kg (3.3 lb); probe 0.4 kg (0.9 lb) or 0.9 kg (2 lb)About 1.5 kg (3.3 lb)Control unit 1.7 kg (3.75 lb)Control unit 640 g (22.6 oz); probes 105 to 165 g (3.7 to 5.8 oz)
BatteryLi-ion, about 12 hoursInternal, about 12 hoursBuilt in, 48 hours, USB-C chargingBuilt-in rechargeableRechargeableReplaceable Li-ion, about 7 hoursBuilt in, about 24 hours
WaterproofNo (IP40)No (IP40)No waterproof ratingNoNoNo (IP40)No
Warranty2 years2 years2 years2 years2 years2 years2 years

OKM gives most of these depths as objects its customers have found; they apply to large objects and voids, not coins.

Why Buy the OKM Evolution NTX from Serious Detecting?

  • Free Shipping on Orders Over $99: Your OKM Evolution NTX ships at no extra cost across the continental US.
  • Authorized OKM Dealer: Showroom in Ypsilanti, Michigan, full 2-year manufacturer warranty and product registration support.
  • Help Before and After You Buy: Our staff answer setup, software and Evolution NTX questions by phone or email.

Customer Questions & Expert Answers

Get real answers from outdoor explorers and our product experts. Browse questions about performance, features, and setup —or ask your own to make sure this gear fits your next adventure.

Can the OKM Evolution NTX be used as a regular metal detector?

Yes, the OKM Evolution NTX can be used as a metal detector for shallow targets: its Live Sound mode turns on the built-in VLF metal detector for coins, rings and jewelry near the surface, with an audio signal and a simple graphical indication on the screen. Its main job is the 3D Scan mode, which maps a measured grid so you can judge a target before digging. If most of your detecting is covering parks, fields and beaches for scattered small finds, a conventional metal detector is lighter and faster for that work.

Answered by Dan P. · October 2026

How deep can the OKM Evolution NTX detect?

How deep the OKM Evolution NTX detects depends on the target: OKM does not publish a rated detection depth, and its product page says customers have found objects down to 8 m (26 ft). That figure comes from customer finds, so real depth depends on the size of the target, the ground and how carefully the scan grid is walked. Small objects such as single coins are found much shallower than large objects. Our guide to how deep metal detectors go explains what changes detection depth.

Answered by John W. · October 2026

Do I need my own computer to use the OKM Evolution NTX?

No, you do not need your own computer for the OKM Evolution NTX: OKM includes a pre-configured Windows notebook and a USB flash drive with Visualizer 3D Studio Standard Edition, which is the software that turns a 3D scan into an image. To use your own computer as well, OKM's minimum is Windows 10, a 1.2 GHz processor, 2 GB of RAM, a 1920 x 1080 display and 250 MB of free disk space. OKM also offers higher editions of Visualizer 3D Studio. Other OKM ground scanners, such as the Delta Ranger and Gepard GPR, also ship with Visualizer 3D Studio.

Answered by Richard T. · October 2026

Is the OKM Evolution NTX waterproof?

No, the OKM Evolution NTX is not waterproof: OKM lists the control unit as not waterproof and rates it for 5 to 75 percent air humidity and 14 to 140 F (-10 to 60 C). Use it on dry ground and pack it away in rain. The protector case in the kit is waterproof and shock-resistant, but it is for transport and storage. Detectors built to go in the water are in our waterproof metal detectors collection.

Answered by Dan P. · October 2026

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