I have purchased one for trials etc.
Canuk company . http://www.mtpinc.com/SearchResults....CDT=1369843688
So far, 3 days in It seems to almost emulate the same readings as the original kill-a-watt.
When freezer kicks in, 168 watts is added to the MTP system and killawatt jumps to 180 and then cuts down to 170 watts.
I can turn on any 220v machine and see its added draw.
Keeps track of my wasting .. After this week I should be able to download it the PC program and analyze it.
Keeps track of 2 years in day by hr monitoring , every 10 seconds it updates.
New tech toy 4 VT Spec's = http://www.mtpinc.com/Products.htm?CD=97&ID=616