Terratest facebook Terratest youtube

Light Falling Weight Deflectometer

for load bearing capacity test

Using Light Weight Deflectometer TERRATEST 4000 USBThe Light Falling Weight Deflectometer for the dynamic load plate test from TERRATEST® offers a fast and simple method of testing soil bearing capacity and compaction qua­lity. As a specialist in Light Weight Deflectometers TERRATEST® develops inno­vative measuring instruments based on the customers’ requirements in terms of performance, efficiency and construction site suitability. TERRATEST® provides a complete, comprehensive range of products of Light Falling Weight Deflectometers for earth­works, road construction and track laying.

Light Falling Weight Deflectometers made by TERRATEST® are in use all over the world. Over the years more than 6000 units have been put in place. They are being used in all continents of the world. The special quality of our Light Falling Weight Deflectometers combined with our large product range and the high-quality of manufacturing have given us a high reputation among users: Whether with the German Army in Afghanistan, during urban civil engineering in Munich or while building the Bejing-Shanghai High-Speed Railway – wherever construction takes places, such as earthworks, road- or civil engineering, TERRATEST® is highly valued for the high quality of the robust and precise Light Falling Weight Deflectometers.

International regulations for compaction test
The Light Drop weight Tester from TERRATEST® complies with German and international regulations:


  • TP BF-StB part B 8.3 edition 2012
    German regulation: Engineering Code for Soil and Rock in Road Construction
  • ASTM E2835-11
    American Standard Test Method for Measuring Deflections using a Portable Impulse Plate Load Test Device
  • ZTV E-StB 09
    German regulation: Additional terms of contract and rules for earthwork in road construction
  • ZTV T-StB 95
    German regulation: Additional terms of contract and rules for subbases in earthwork
  • ZTV A-StB 97 /2012
    German regulation: Additional terms of contract and rules for excavation in traffic access
  • RVS 08.03.04 March 2008
    Austrian regulation – Compaction test by means of dynamic plate load test
  • RIL 836, Deutsche Bahn AG
    Guideline for the use of the measuring equipment in railway construction
  • UNE 103807-2:2008
    Spanish regulation – Plate Load Test by means of the measuring equipment – part 2
  • TB 10102-2004, J338-2004
    Chinese regulation – Regulation for soil testing in railway construction
Android App
für Smartphone
Testing Mode
Software (PC)
Direkt vom
2 Jahre

Light Falling Weight Deflectometer perfect for testing soil compaction

unbeatable price

compaction control in only 2 minutes

no vehicle required

immediate test results on construction site

Dynamic load plate tester Bluetooth and Android app
Dynamic load plate tester Bluetooth and Android app
TERRATEST 5000 BLU is the first Light Weight Deflectometer in the world operating wirelessly via Blue- tooth. Thanks to its Bluetooth technology it is possible to control TERRATEST Light Weight Deflectometer by smartphone or tablet.
Light Drop Weight Tester TERRATEST 4000 USB
Light Drop Weight Tester TERRATEST 4000 USB
The Light Drop Weight Tester TERRATEST 4000 USB is fully equipped with all extras such as GPS system, printer, usb drive, high-performance rechargeable battery and PC software. All equipment is protected inside the weather- proof box “ROBUSTA”. On site you can operate TERRATEST 4000 USB via an external button, while the box is closed.
Light Weight Deflectometer transportation box "ROMA"
Light Weight Deflectometer transportation box "ROMA"
In order to transport the two Light Weight Deflectometers 10 + 15 kg, TERRATEST provides the transportation box ROMA. Your test equipment will be protected wherever you go with the high-quality transportation boxes from TERRATEST.