If a device is battery operated, low clock frequency (under 1Mhz I think) are there any agency approvals that are really required? I've seen some products marked UL even tho they are battery powered. Yes, this would be a consumer device as well. --------------------------------- What are the most popular cars? Find out at Yahoo! Autos -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist