03-02-2016, 03:33 PM
FYI, I found this article about Mitsumi which basically says they were brought on as a second manufacturer of Z Wave 500 series devices. So I think the boards are Z-Wave Plus, Mitsumi just has a different series numbering than what Sigma uses.
http://www.sigmadesigns.com/news/z-wave-...-globally/
http://www.sigmadesigns.com/news/z-wave-...-globally/