• Overview

• Device Certification

• Certified Product Catalog

• Certification Tool

• Details

• User Guide

• License Agreement

• Professional Certification

• Annual LonMark Awards

  Related Information

Device Certification - LonMark conformance instructions.

Design Guidelines - Technical information for developing open interoperable LonMark products.

Technical Corner - Provides answers to commonly asked technical questions.

LonMark Members who manufacture products used in Open Systems

LonMark Certification Tool Users Guide

LonMark Certification Tool Users' Manual
LCT_User_Manual.pdf, Version 1.00, 2005-07, 687k

This document contains the instructions for getting started with the LonMark Certification Tool (LCT). The LCT can be licensed by Sponsors and Partner members of LonMark International. For more information about the LCT, please visit http://cert.lonmark.org/. If your company is a LonMark Sponsor or Partner, please visit http://cert.lonmark.org/ for pricing information and how to get authorization for your company’s use of the LCT.

For more information about becoming a LonMark Sponsor or LonMark Partner, please visit the Membership secition of this website.














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The number of applications for LonMark certification is growing rapidly. To make sure your products are on-track for certification, design conformance into them by following the LonMark Interoperability Guidelines v3.4.

see Device Certification

The Proficiency Testing Program for Qualified Open Systems Installers, Professionals and Integrators provides a worldwide standard of proficiency for individuals that install, integrate and maintain systems utilizing LonMark certified products.

see Professional Certification