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  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 International Certified Product Catalog


Welcome to the online LonMark International Certified Product Catalog.
Only LonMark International Certified products are listed in this catalog. Products that have been successfully certified by LonMark International can be easily installed in multi-vendor LonWorks® networks.

LonMark International Certified products are designed to be easily integrated, monitored and controlled using any choice of network tools. All Certified products have been verified to conform with the LonMark International Interoperability Design Guidelines.

This catalog of Lonmark International Certified products is provided to the public as a benefit to our members. Only products for current members are included in this catalog.

Included on most product pages for download:
Datasheet, External Interface (.XIF) file, Device Resource Files (.TYP, .FPT, .FMT, and language files).

If you would like to include your products in this catalog, please contact LonMark International regarding membership.

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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

Product & Services Guide
Product & Services Guide