I've heard of optical pickups you can attach to the wattmeter on your house. But I can't seem to find them, even using all the search engine spells I know of. Any pointers? Thanks. Cheerful regards, Bob -- Bob Blick bobblick@ftml.net -- http://www.fastmail.fm - A no graphics, no pop-ups email service -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist