AD Electronics  15 Fern Avenue, Rye, NH 03870.  USA

Tel:  (603) 964-5924
Fax: (603) 964-5925
Website: http://www.adelectro.com
Email: ed.kirkpatrick@adelectro.com

Concurrent Technologies Inc.  6 Tower Office Park Woburn, MA 01801.  USA

Tel: (781) 933 5900
Fax: (781) 933 5911
Website: http://www.gocct.com
Email: sales@gocct.com