Legacy power meter firmware release notes
- Version 24 - June 17, 2015
- Version 23 - August 13, 2014
- Version 22 - June 10, 2014
- Version 21 - April 8, 2014
- Version 20 - March 25, 2014
- Version 19 - April 1, 2013
- Version 18 - March 26, 2013
- Version 16 - February 8, 2013
- Version 14 - July 24, 2012
- Version 13 - July 11, 2012
- Version 12 - April 9, 2012
- Version 10 - April 3, 2012
- Version 11 - April 7, 2012