On 1/30/06, alan smith wrote: > > 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. If I remember right, the clock frequency limit for part 15, is something like 9kHz, with an exemption for digital watches at 32.7 kHz. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist