The current svn version of the plugin is unusable because once after the configure dialog is closed when adding the plugin to the panel, the plugin crashes due to a wrong default value for a string variable. So you can't add the plugin to the panel because it instantly crashes at adding it. Patch to solve the problem is attached.
Created attachment 1597 Fix wrong initial value for sensors command by making a copy of the string instead of a constant string to fix crashes.
Just for your interest a few information I forgot in the previous post: The crash happens in panel-plugin/sensors.c:2042: g_free(sd->sensors->command_name); And sd->sensors->command_name is initially set in panel-plugin/sensors.c:840: sensors->command_name = "xsensors"; And free'ing a const string obviously causes a crash. The attached patch set sensors->command_name to a copy of the string which solves the problem.
(In reply to comment #2) Thanks for the report, fixed it some weeks ago. Please close as resolved or patch applied.
Fixed.