Light Weight Deflectometers
Portable, drop-weight deflectometers for quick on-site soil stiffness and compaction testing—perfect for construction QA and pavement design validation.
Key Features:
✔️ Single-person operation: portable 10 kg dropping weight and plate system
✔️ Rapid testing—typically 1–2 minutes per location for close-spacing QA
✔️ Measures dynamic modulus (Evd) and surface stiffness instantly
✔️ 300 mm plate with geophone accelerometer; dual-plate options available
✔️ Non-destructive, ideal for granular/subbase layers and trenches
✔️ Compliant with ASTM E2583, CEN/TS 17006, BS 1924‑2, Italy UNI11531 standards
✔️ Correlation with resilient modulus and compaction levels for pavement design
✔️ Bluetooth/mobile app support for real-time data capture and GPS tagging
Light Weight Deflectometers – Efficient In-Situ Stiffness Testing for QC & Design
Light Weight Deflectometers
The Light Weight Deflectometers series comprising the Inspector 4, Inspector 4M, and Inspector 5, provides a compact, mobile solution for non-destructive testing of subgrade stiffness and load-bearing capacity. These portable testing systems are used to assess soil compaction quality across unpaved roads, airstrips, military base zones, and construction sites. Each variant is built with a rigid drop-weight mechanism, integrated sensors, and a digital data acquisition system, allowing fast, repeatable, and precise surface deflection measurements.
The Inspector 4 serves as the baseline model, offering reliable performance with a 10 kg drop weight and high-sensitivity geophone for accurate data capture on granular soils. The Inspector 4M adds onboard GPS and data memory capabilities, supporting location-based documentation and field reporting without external equipment. The top-tier Inspector 5 features an increased drop weight of 15 kg and broader plate selection (including 200 mm and 300 mm options), making it suitable for deeper compaction assessments and tougher base materials. All three models offer Bluetooth connectivity and compatibility with mobile apps or laptops for real-time monitoring and reporting.
The Light Weight Deflectometers are widely used in defense infrastructure projects, including temporary airfields, rapid road construction, and engineering corps operations where ground quality must be verified before equipment deployment. Their portability, battery operation, and fast testing cycle make them ideal for field engineers, especially in remote or rugged environments. Results can be used immediately to determine whether compaction meets structural requirements or needs correction.
Tactical Supply Pakistan supplies this full range of deflectometers to support military and civil engineers with reliable field-testing tools for ground evaluation under dynamic conditions.
Can the deflectometer results be exported and integrated into geotechnical software?
Yes, all models support digital export of test data, and results can be formatted for integration into standard geotechnical or pavement design software for further analysis.
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