GREAT 4-S
GREAT 4-S
Comprehensive German gold and metal detector integrating 4 professional detection systems with 3D ground survey and live imaging up to 25m declared depth.
What is the GREAT 4-S?
GREAT 4-S combines 4 advanced detection technologies into a single ergonomic instrument engineered by GREAT DETECTORS. Providing treasure hunters with 3D ground survey imaging, real-time metal discrimination, and both vertical and horizontal live imaging for subsurface strata and cave walls, fully compatible with Windows and Android platforms.
GREAT 4-S is Built to Find
A multi-system instrument engineered to locate a broad range of targets across diverse field environments.
Detection results depend on soil conditions, environment, and target characteristics. GREAT DETECTORS does not guarantee specific search outcomes.
GREAT 4-S Package Contents
Your official package arrives complete and ready for immediate field deployment.
Android Tablet
جهاز Android اللوحي (Android Tablet)High-resolution dedicated tablet pre-configured with official GRT software for 3D visual analysis.
Tablet Mount
حامل التابلت (Tablet Mount)Ergonomic rugged mounting bracket securing the tablet directly onto the instrument during field surveys.
USB Cable
كابل USB (USB Cable)High-speed shielded USB data cable providing reliable communication between instrument and tablet.
Charging Connector
وصلة الشاحن (Charging Connector)Original charging connector adapter for the device power and charging circuit.
Device Bag
حقيبة الجهاز (Device Bag)Heavy-duty padded transport case engineered to protect all components in challenging field environments.
Tablet Charger
شاحن التابلت (Tablet Charger)Certified fast charger for the dedicated Android tablet.
Main Unit
الوحدة الرئيسية (Main Unit)German central processing and sensor assembly equipped with scan controls and ergonomic grip.
GREAT 4-S Rugged Shockproof Field Case
The GREAT 4-S case features precision-formed cavities accommodating the control console, vertical & horizontal live imaging sensors, and field travel power accessories.
GREAT 4-S Full Package Case
Shock-absorbing protective layout ensuring safe mobility across remote terrain.
4 Precision Search Systems. Total Subsurface Clarity.
Every system is specifically engineered for a dedicated subsurface reconnaissance task, backed by official German sensors and software suites.
3D Ground Scan
Certified 3D volumetric ground scanning system engineered to render full-color 3D models of subsurface layers. Translates transmitted and reflected sensor pulses into comprehensive spatial diagrams displaying target depth, dimensions, and shape.
Field Operation & Workflow
Connect the device to tablet/PC and launch the dedicated GRT Detectors app.
Configure survey parameters (soil mineralization, step count, scan lines, and parallel or zigzag pass).
Hold instrument vertically 5 to 10 cm above ground level at survey baseline.
Advance in steady 30 cm step increments pressing scan button per step to generate real-time 3D model.
Subsurface Color Guide (Per User Manual)
Interpretive color guide per user manual: Blue for underground voids and tunnels, Light Blue for small or distant cavities, Green for normal soil, Yellow for non-precious metals, Orange for precious metals, and Red for signal responses corresponding to buried gold and high-conductivity treasures (interpretive indication, not a definitive guarantee of target identity).
* Color indicators are interpretive diagnostic guides per sensor responses and do not constitute an absolute guarantee or definitive confirmation of target identity.
GREAT 4-S Official Specifications
Important Note: Declared maximum detection depths (up to 50m / 25m / 18m / 15m) depend on target size, soil composition, mineralized conditions, and field operation parameters.
GREAT 4-S Official Documentation & Downloads
Preview or download official product brochures, catalogs, and field operation manuals in both Arabic and English.
Official Product Brochure & Catalog (Arabic Edition)
Official Arabic brochure and catalog for GREAT 4-S outlining the 4 detection systems, operational specs, and included accessories.
Official Product Brochure & Catalog (English Edition)
Official English product brochure and technical catalog for GREAT 4-S certified for international deployment.
Certified User & Field Operation Manual (Arabic Edition)
Official manual detailing operation instructions, scan settings, and 4-system interpretations.
Common Questions About GREAT 4-S
Verified answers grounded exclusively in official engineering data and product specifications.
The maximum declared detection depth is up to 25 meters. Actual achievable depth depends on target size, soil composition, mineralized conditions, and field operation parameters.
Have a specific question about GREAT 4-S?
Connect directly with our technical advisors for personalized field consultation.
Why Choose GREAT DETECTORS?
3-Year Warranty
Every GREAT DETECTORS unit comes with a 3-Year Warranty from the date of receipt.
German Engineering & Technology
GREAT DETECTORS instruments are manufactured to German engineering standards for professional-grade detection.
Worldwide Shipping (7–10 Days)
Worldwide delivery with an estimated shipping time of 7–10 business days. Shipping rates vary by destination.
Dedicated Technical Support
A dedicated technical support team is available to assist with device setup, software, and field scanning.
Explore the GREAT 4-S
To inquire about the GREAT 4-S and get full details on availability, contact us directly on WhatsApp.
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