Smoothtrac® features include:

• •Non-contacting averaging
• •Improved machine mobility
• •Seamless addition to your existing Profiler System Four or Five

Unlike other grade reference methods, Smoothtrac® uses multiple sonic reference sensors that work independently over the span of the non-contacting ski for greater averaging precision than ever. In fact, only Smoothtrac® lets you mount up to 4 Sonic Tracker II™ reference sensors onto one easy-to-use ski. And because it's easy to use, you can benefit from Smoothtrac® on even the most difficult jobs.

The Sonic Tracker IIs™ are the center of Smoothtrac's® unique averaging method. Simply enter the desired grade into your control box and let the Sonic Tracker IIs™ take it from there. They emit sound pulses over 30 times per second and record the time it takes for those pulses to echo back to the Sonic Tracker II™ from a grade reference, such as the previous pass. Comparing these numbers, the system automatically moves the cutting head to make the necessary grade adjustment. Sound easy? It is.

Although each Sonic Tracker II™ provides an independent grade reading, the combination of these readings from multiple Sonic Tracker IIs™ produces far more accurate averaging than any other system available.