Thanks, Steve. That's why I asked... I wasn't sure what the real risks are. I did do some FCC research and found out that there is no safety requirement in the RF band (13.56 MHz). I did speak to Bill Moffat who's very active in this forum and he recommended a few things that I can do to assess RF leakage and how to further insulate it. I do agree with your warning... just like the old adage says, "You get what you pay for." -----Original Message----- From: Adamson, Steve [mailto:sadamson@asymtek.com] Sent: Monday, July 02, 2007 8:18 AM To: General MEMS discussion eally worth what you saved, especially if a technician or operator takes you to court for damages. Sorry to sound like your mother on this, but as I say unless you are an expert in this field then you need to use others expertise, otherwise you take on the full responsibility for your actions. Regards, Steve Adamson