Product · Ground Penetrating Radar
GSSI SIR-4000
GSSI's high-performance GPR control unit, compatible with all GSSI digital and analog antennas — the flagship data-acquisition platform for utility, structural, and geological survey.
New Refurbished Absolute Certified Surplus
About the GSSI SIR-4000
The SIR-4000 is GSSI's high-performance ground penetrating radar control unit, built to operate with the full range of GSSI digital and analog antennas. It runs GSSI's collection modules — Quick 3D, UtilityScan, StructureScan, and Expert Mode — from a single sunlight-readable touchscreen interface, making it the most versatile control unit in the GSSI range.
Because it supports every GSSI antenna frequency, the SIR-4000 is the natural upgrade path for survey companies standardizing on one control unit across utility locating, concrete scanning, and geological work.
| Specification | Value |
|---|---|
| Compatible Antennas | All GSSI digital & analog antennas |
| Display | Sunlight-readable touchscreen |
| Collection Modes | Quick 3D, UtilityScan, StructureScan, Expert Mode |
| Data Storage | Removable SD card |
| Portability | Backpack-portable control unit |
| Power | Rechargeable battery, multi-hour field operation |
Available across all four PartnerGeometrics condition tiers — New, Refurbished, Absolute Certified, and Surplus. See our condition tier guide for details on what each tier includes.