Nokta Invenio & Invenio Pro - 3D Imaging Metal Detector System

What Is the Nokta Invenio Metal Detector? Real-Time 3D Imaging Explained

The Nokta Invenio (originally branded Nokta Makro Invenio before the company name change) is a smart metal detector that pairs a VLF detection engine with the IPTU sensor and an Embedded Linux control unit running an OpenGL graphic process. The IPTU (Integrated Positional Tracking Unit) computes the right-left, forward-back movement of the search coil and its height above the ground, then combines that positional data with the target signal to draw the buried object's actual shape, dimensions, and depth on the 7" 800 x 480 RGB TFT screen. Three different patents cover the technology. This is a metal detector with imaging built for hunters who want to confirm size and depth before committing to the dig, particularly on cache work, ground anomalies, and large relic targets where a standard VLF gives you a beep and a target ID number and nothing else.

Invenio Standard Pack vs. Invenio Pro Pack: Which One Do You Need?

Both packs share the same system box, IPTU sensor, shaft and handle, Embedded Linux platform, OpenGL graphic engine, 7" TFT screen, six search modes, ground balance options, languages (17), and 2-year warranty. The differences sit in operating frequencies, included coils, and bundled batteries and cases.

The Pro Pack is the right pick for cache hunters and relic operators who want the 5 kHz frequency option for deep silver and large copper, the 20 kHz option for smaller low-conductive targets, the big INV56 coil for extreme-depth scanning, and the spare battery plus hard case for serious field work. The Standard Pack works for hunters who plan to stay at 14 kHz on the two included coils and do not need air-travel-grade case protection.

Nokta Invenio Pro Key Specs

• Operating Principle: VLF
• Operating Frequency: 5 kHz, 14 kHz, 20 kHz selectable (Pro); 14 kHz only (Standard)
• Audio Frequencies: 150 Hz to 700 Hz adjustable
• Search Modes: 6 total. Three non-motion (Basic, Expert, Ground Anomaly & Cavity) and three motion (All Metal, Fast, Deep)
• Ground Balance: Automatic, Manual, or Tracking
• Sensor: IPTU (Integrated Positional Tracking Unit)
• Operating System: Embedded Linux with OpenGL graphic process
• Display: 7" 800 x 480 18-bit RGB TFT screen, backlit
• Sensitivity Setting: 01 to 99
• Target ID: 00 to 99
• Discrimination Tools: Iron Audio, Tone Break, Notch Filter, Frequency Shift
• Pinpoint: Yes
• Vibration: Yes
• LED Flashlight: Yes
• Search Coils (Pro): INV28 (28 x 18 cm / 11" x 7"), INV40 (40 x 35 cm / 15.5" x 14"), INV56 (56 x 40 cm / 22" x 19"); all waterproof DD
• Wireless: 2.4 GHz wireless link between system box and shaft; optional 2.4 GHz wireless headphones
• System Box Battery: 7.4 V 5500 mAh LiPo, approximately 5 hours runtime
• Shaft Battery: 7.4 V 5400 mAh LiPo, approximately 9 hours runtime
• System Box Spare Battery: 7.4 V 9500 mAh LiPo (Pro Pack only), approximately 9 hours runtime
• Weight: System Box 1.7 kg (with 5500 mAh battery), Shaft and Handle 2.4 kg
• Length: 121 cm to 152 cm adjustable
• Languages: 17 supported
• Firmware Updates: via USB from PC
• Warranty: 2 Years

What the Invenio Excels At, and Where It Has Limits

The Invenio Pro earns its place on cache hunts, old home sites with deep iron and large copper, ground anomaly and cavity surveys (caves, tunnels, voids), and relic permissions where target size and depth matter more than recovery speed. The IPTU sensor and OpenGL renderer give you a 3D picture of the target before you start digging a two-foot hole. The Pro's three-frequency selection (5 kHz for deep silver, 14 kHz for general work, 20 kHz for small low-conductive targets) covers a wider mix of sites than the 14 kHz Standard. The Invenio is heavier than a single-coil VLF (system box 1.7 kg plus shaft and handle 2.4 kg, before adding a coil) and the methodical 3D scanning workflow takes longer than swing-and-dig hunting. It is not the right tool for fast park clad recovery, beach surf hunting, or wet salt sand. For coin shooting and casual park work, browse the wider Nokta metal detectors lineup or step over to a lighter multi-frequency or single-frequency VLF. The Invenio is a deliberate, methodical instrument for detectorists who hunt big targets and need to make informed dig decisions before they break ground.

Why Buy the Nokta Invenio Pro Metal Detector from Serious Detecting?

• Free Shipping on Orders Over $99: Your Invenio Standard or Pro Pack ships at no extra cost across the continental US.
• Authorized US Nokta Dealer: Full 2-year manufacturer warranty and product registration support.
• Detectorists on Staff: Call or email for IPTU setup help, search mode selection by site type, coil pairing, and 3D imaging workflow advice from people who have run the gear.