The Rand McNally HD 100 is an electronic logging device that works in conjunction with the HD 100 app. The app connects with the HD 100 device, which plugs into the truck's diagnostics port, and wirelessly transmits Hours of Service (HOS) information. The HOS logs can be accessed on the HD 100 app and the Rand McNally Connect web portal.

The HD 100 app, in combination with the HD 100 device and a service plan, is an ideal solution for owner-operators, drivers, and fleets. It helps to track and view On Duty, Driving, Off Duty, and Sleeper Berth duty status time accurately. The system automatically switches between statuses, making it easy to record Driving & On Duty time. The app also allows completing Vehicle Inspection Reports & Trip Sheets electronically. In addition, it provides notifications of potential HOS violations with on-screen and audio alerts, making it easier for you to stay compliant. You can also send logs directly by fax number or email address during an inspection. The Rand McNally Connect web portal provides log history, safety, and performance reporting, making it easier to access information and streamline overall fleet operations.