OKM Fusion Overview
Every OKM Fusion works the same basic way. You walk a scan field in parallel lines while the control unit records measurements, then view the result as a color-coded 3D graphic in Visualizer 3D Studio on a Windows computer. The image shows anomalies, meaning spots that differ from the surrounding soil, and helps you judge their position, size and depth. Each Fusion also has a magnetometer mode for ferrous metal: OKM calls it Magnetometer on the Fusion Light and Live Sound on the Fusion Professional. OKM says experienced users run it first to clear surface iron out of the scan field, so small junk does not clutter the 3D image of deeper targets.
OKM rates both control units IP40 and lists them as not waterproof, with an operating range of -10 to 60 °C (14 to 140 °F). Both charge in about 3 hours, and OKM covers each with a 2-year guarantee.
Fusion Light vs Fusion Professional: Which Should You Buy?
OKM places the Fusion Light in its entry-level 3D group and the Fusion Professional in its advanced group, and three things separate them. First, how you run it: the Fusion Light is controlled from the OKM app on a supplied Android smartphone, while the Fusion Professional comes without a smartphone: its probe is used in vertical orientation with the supplied Windows notebook. Second, shallow metal: only the Fusion Professional has the SRIS search coil. Third, depth: OKM's customer-find figure is 8 m (26 ft) for the Fusion Light and 21 m (69 ft) for the Fusion Professional, both for large objects. If you are learning OKM 3D scanning and like a phone app, we recommend the Fusion Light. If you want more depth and the SRIS coil, choose the Fusion Professional.
Fusion Light, Best For:
- First-time 3D scanner buyers who want the lightest Fusion and a phone app
- Scanning for caches and iron objects with a quick Magnetometer pass first
- Searchers who want a supplied phone and notebook dedicated to the scanner
Fusion Professional, Best For:
- Deeper cache, chamber and tunnel searches, using OKM's larger depth figure
- Checking excavated soil for rings, coins and buttons with the SRIS coil
- Searchers who already work from a laptop in the field
Key Features in the Field
The SRIS coil on the Fusion Professional finds metal close to the surface, and you switch it on while setting up Live Sound or 3D Ground Scan. Its most practical use is after the scan: once you open a hole, it checks the excavated soil for small items. On the Fusion Light, a pinpointer such as the OKM Fortuna XELA does that job.
Reading Fusion scans takes practice. We tell first-time buyers to scan the same field more than once, from different directions, before they dig, because a real anomaly should show up in each pass. OKM gives its depth figures as objects customers have found, not as a tested specification, and they apply to large objects and voids, not coins. Our guide How Deep Do Metal Detectors Go? explains why target size matters so much.
Where the Fusion Works Best and Its Limits
A Fusion suits a searcher with a defined spot to image: a cellar line, a reported cache, a suspected chamber or tunnel. It is a dry-ground instrument, so rain ends the survey. No 3D ground scanner is the right tool for swinging and digging coins, rings and relics in the top foot of soil; a conventional detector from our relic and treasure metal detectors does that faster and at a fraction of the cost. If you want a VLF detector built into the scanner, compare the Evolution NTX in the table below; if you would rather not carry a phone or laptop, compare the Rover UC and Rover C4. For targets that are not metal, such as concrete, pipes or voids, the OKM Gepard GPR radar is built for that job.
Software and Accessories for the OKM Fusion
The Fusion has no interchangeable search coils. The sensors, and the SRIS coil on the Fusion Professional, are built into the control unit, so coils and coil covers made for conventional detectors do not fit. OKM's Fusion Light kit holds the control unit, an Android smartphone with the OKM app, a Windows notebook with Visualizer 3D Studio Standard Edition, a charger and a waterproof, shock-resistant protector case. The Fusion Professional kit holds the control unit, a pre-configured Windows notebook, a USB flash drive with Visualizer 3D Studio Standard Edition, Bluetooth headphones for Live Sound, a charger and the protector case. OKM offers a Visualizer 3D Activation Pack and 3D software training for owners who want more activations or help reading scans.
Compare OKM 3D Ground Scanners
| Feature | Fusion Light | Fusion Professional | Rover UC | Rover C4 | Evolution NTX | eXp 5500 | Delta Ranger |
|---|
| OKM group | Entry-level 3D ground scanner | Advanced 3D ground scanner | Entry-level 3D ground scanner | Entry-level 3D ground scanner | Entry-level 3D ground scanner | Advanced 3D ground scanner | Multi-technology treasure detector |
| Operating modes | 3D Ground Scan, Magnetometer | 3D Ground Scan, Live Sound (magnetometer) | Magnetometer, Pinpointer, 3D Ground Scan | 3D Ground Scan, Magnetometer, Pinpointer, Mineral Scan | 3D Scan, Live Sound (VLF) | 3D Ground Scan, Magnetometer, VLF Metal Detection | Bionic Stream, Ionic Stream, Magnetometer, 3D Ground Scan, Thermo Scan, Thermo Stream |
| Shallow metal coil | None | SRIS search coil, built in | None | None | VLF search coil, built in | 14 x 10 inch VLF PentaCoil | None |
| Control and display | Supplied Android smartphone with OKM app | Supplied Windows notebook; Live Sound through Bluetooth headphones | Supplied Android smartwatch with OKM app | 3.5 inch touchscreen on the control unit | 3.5 inch color touchscreen on the control unit | 8.4 inch touchscreen on the control unit | Supplied 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) |
| Weight | About 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) |
| Battery | Li-ion, about 12 hours | Internal, about 12 hours | Built in, 48 hours, USB-C charging | Built-in rechargeable | Rechargeable | Replaceable Li-ion, about 7 hours | Built in, about 24 hours |
| Waterproof | No (IP40) | No (IP40) | No waterproof rating | No | No | No (IP40) | No |
| Warranty | 2 years | 2 years | 2 years | 2 years | 2 years | 2 years | 2 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 Fusion from Serious Detecting?
- Free Shipping on Orders Over $99: Your OKM Fusion 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 Fusion questions by phone or email.
OKMSale Price $6,409.00 Regular Price
OKMSale Price $10,154.00 Regular Price
