C441 Helical Screw Pile Torque Sensor

The C441© (Pro-Dig-Intellitork©) helical screw pile torque, thrust, angle rpm measurement system is a wireless completely contactless highly accurate torque sensor for those who need to confidently measure and verify heavy duty torque for insertion of helical screw piles.

For 8 years now, The C441 Helical Screw Pile Torque Measurement Systems (and its predecessor C440) quickly become established as the industry standard for the Helical (Screw) Pile foundation insertion industry, where torque monitoring relating to pile insertion is of paramount importance.

The C441© is a completely non-contact TORQUE, thrust, angle, rpm, and depth measurement system, able to log all data including GPS satellite location when used with an Apple or Android compatible product tablet or Cell Phone.

Simple, easy to use and can be quickly installed or removed as required.  A highly accurate and hassle-free heavy measurement package, which is proven to be an essential tool for engineers who need to confidently measure and verify heavy duty torque on-site under the harshest conditions.

C440 In AirC441-H300 Hellical Screw Pile Heavy Duty Torque Monitoring SystemC440 Helical Screw Piles Used In Crane

Helical Screw Pile Torque Monitoring

In the past, a method of assessing the integrity of a helical screw pile was by estimating the hydraulic back pressure generated using visual hydraulic gauges and recording this data by hand.  This process was both time and labor intensive and generally had very poor accuracy of between 10-30%.

The C441 helical screw pile measurement system has an accuracy rating of better than 0.25% with its data wirelessly transmitted effortlessly to an Apple or Android app.  The data can also be emailed from within the apps and exported to other software including Microsoft Office programs, such as Excel, for easy analysis and storage.

The C441 Torque Monitoring System is easy to introduce to any Helical Screw Pile torque measurement system and allows for a far simpler, more accurate, efficient and reliable method of installation giving a greater sense of confidence in any foundation Piles being installed.

C441 Helical Screw Pile Torque Monitoring System Features

Marketed by Pro-Dig LLC USA and Pro-Dig Europe, under their Intelli-Tork© banner, our revolutionary design allows the operator and engineers to be able to show highly accurate data in real time:

  • Torque,
  • RPM
  • Rotations
  • Highly accurate angle if insertion.
  • Thrust
  • Insertion depth values
  • Pile geographical unique location through GPS technology through the Mobile/Tablet application

Additionally, the system also provides:

  • Options for display of values as Imperial OR Metric (Lbs/Ft and Nm)
  • Logging of all data to simple files able to be viewed locally, and emailed at the touch of a button.
  • Intelli-Tork Applications available free to download from Apple Appstore©, and Google Play©.

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C441 Helical Screw Pile Torque Sensor Range

C441 Helical Screw Pile Monitoring System
Torque Measurement Range
Calibrated Torque Rating 10,000
Max Torque Rating 12,000
Calibration Thrust Rating 33
Max Thrust Rating 330
Operating Temperature Range -30 up to +60
(-22 up to 140)
Operating Voltage6V
Data Output Rate10sps
Non-Linearity Accuracy0.25%

The C441’s simplicity and flexibility easily make it an ideal choice for many other applications where the measurement of torque in large drilling and excavation machinery is required for a civil engineering environment.  The high accuracy and its ability to wirelessly transmit, log and record data, allows companies the security that they have are using an accurate method of measuring all data with the ability to provide the records whenever the need arises.  Just one more example of another practical torque and multiple measurement solution for industry and being adopted as the standard solution.

Intelli Tork App for Hellical Screw Pile Heavy Duty Torque Monitoring

Intelli Tork App for IOS and Android for the C441 Helical Screw Pile Heavy Duty Torque Monitoring System

Available from:
– Apple AppStore©
– Google Play©

Do you require accurate, robust and reliable data for your Helical Pile insertions, using the industry-leading product?

Contact Team



      • Datum HQ Headquarters
      • Castle Street
      • East Cowes
      • United Kingdom
      • PO32 6EZ
      • +44 (0) 1983 28 28 34



      • Accurate - better than 1%
      • Simple and Easy To use and Install
      • Fast and Reliable Logging system
      • Robust Design: IP67 Rated
      • Rechargable Lifespan 3-4 weeks Usage
      • Temperature range: -20 to +60°C
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