Electronic drift Indicator tool replaces existing 'Totco' systems in industry standard 1" size. The instrument is easy to use and provides high accuracy digital drift measurements without the need to read cards or film. Surveys can be read directly from the on board display or transferred to an easy to use software package for reporting. The EDI includes an onboard motion sensor. Key Features and Benefits: Low Cost, Easy to use, In built Motion Sensor reduces misruns, High Accuracy, can use existing running gear. View Brochure About Brochures Demonstration To download a Brochure, right-click on the View-Brochure link, then select Save Target As...