The Sonar ultrasonic time-of-flight (TOF) measurement device measures, displays, stores and transfers bolt load and elongation data in a new, single purpose unit.

The unit uses a rugged, sealed color touch screen for easy operator use. The measurement system is a hybrid technique, using the best of both analogue and digital signal processing techniques for fast signal acquisition and precise single shot TOF measurement.
The intuitive software has been developed specifically for the bolting industry, with input from the most experienced users and electronic developers in the bolt tightening industry. Easy to use and quick verification of your bolt preload.