From Phyl: American Sensors Electronics Inc. Toronto, Ontario M2H2N8 No phone number appears on the box. Model # SA 388 Item # SA 388 1 2503-544 Remember we are NOT Doctors and have NO medical training. This site is like an Encylopedia - there are many pages, many links on many topics. Support our work with any size DONATION - see left side of any page - for how to donate. You can help raise awareness of CAM.