The J. J. Keller Mobile® ELog app is the industry’s most simple, flexible and affordable driver electronic log available. This patented ELD mandate-compliant solution is used by commercial motor vehicle drivers to electronically capture hours-of-service duty status information, replacing the driver’s paper log book. The app uses a driver-friendly interface to present hours-of-service data to drivers, helping them optimize their on-duty and driving hours and reducing the risk of violations. The solution works with class 1-8 vehicles and offers many industry and state-specific HOS rulesets, accommodating exempt, non-regulated, hyrail and team drivers.

The J. J. Keller® electronic logbook is compliant with both AOBRD (395.15) and ELD (Part 395 Subpart B and Part 395 Appendix) regulations. The electronic logging device is on the FMCSA ELD registry. The KellerMobile™ app is part of the J. J. Keller® Encompass® Fleet Management System, which uses the J. J. Keller® electronic logging device and the Encompass® back office portal.

Hours-of-service and telematics data is captured from the engine via a hardline adapter from the engine’s diagnostic port into the ELD hardware. The hardware continuously records and stores engine data. Data is transmitted via Bluetooth from the hardware to the KellerMobile™ application on drivers’ handheld Android™ devices. Hours-of-service data and alerts are presented to the drivers in real time using compliance rulesets determined by the company. Data from the Android™ device is transmitted via cellular connection to the Encompass® online back office portal for hours-of-service auditing, reporting and recordkeeping.


MANDATE-COMPLIANT ELD – Solution is compliant with the final FMCSA mandate deadline of December 16th, 2019. Regulatory and technology updates are always delivered over-the-air and require no hardware swap outs.

HOS COMPLIANCE ALERTS - App continuously checks drivers’ hours against the current DOT hours-of-service rules and company rulesets, and presents alerts to drivers of impending violations.

HOS RULE SETS – App supports many state and industry rulesets, including US 60/70, US and Texas Oil Field, Canadian Cycle 1 & 2, US Construction, 100 & 150 Air-Mile Exempt, and more.

ROADSIDE INSPECTION MODE – Supports AOBRD and ELD regulatory requirements for roadside inspection protocol, including mobile display and Telematics Data Transfer method.

ELECTRONIC VEHICLE INSPECTIONS (EDVIRs) – Driver-friendly interface supports pre- and post-trip vehicle inspection process and customized criteria.

ADDITIONAL FUNCTIONALITY - Supports team driving, hyrail, personal conveyance, exempt logging, border crossing, multi-user login, and more

DOT DRIVER AND VEHICLE COMPLIANCE RECORDKEEPING – Includes Encompass back-office DOT driver and vehicle compliance recordkeeping features to manage driver qualification, alcohol and drug program management, hiring, training and vehicle maintenance.

DEDICATED DRIVER SUPPORT – Drivers receive 24/7 technical support and Roadside Inspection Hotline assistance. A dedicated support team ensures every Encompass and ELog customer receives quick resolution on technical issues.

DEDICATED COMPANY SUPPORT – Users receive complimentary amenities, including DataQs Challenge Service; DOT Expert Help from our subject-matter experts; subscriber regulatory webcasts; a robust online support site with training videos, FAQs, user guides; and an online training library (coming fall 2019).

OPTIONAL ADD-ON SOLUTIONS – Options include Dash Cam Pro, fuel tax reporting, performance management, and navigation.

COMPLIANCE EXPERTISE - This patented technology was developed by the industry’s leader in regulatory compliance and driver logging since 1953 and is covered by U.S. patents and patents pending. See

For more information about J. J. Keller® ELogs and connected technology solutions, visit
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What's New

Ensuring KellerMobile™ runs in the background while other applications are in use
Allowing drivers to initiate message to Encompass user
Ensuring logs with pending edits do not appear in drivers’ list of logs to certify
Resolving issue where bad fuel values were being reported to Encompass in some scenarios
Other enhancements and app improvements
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Additional Information

October 15, 2019
Current Version
Requires Android
5.0 and up
Content Rating
Offered By
J. J. Keller & Associates, Inc.
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