http://pages.ebay.com/link/?nav=item...13300&alt=web*
Above is an eBay link for a small multifunction board displaying power, voltage, run time, current, programmable. overload alarm, even apparently saves data on shutdown and more all for $9 delivered.
Really would be great to hang on a hacked unit if it works.
Anyone tried one? Sometimes these things come with no or unreadable data sheets.
I saw the ad under the $15 ebay power meter link someone kindly posted here earlier. This seems to have a lot more functions and is even cheaper.
Merry Christmas everyone!