(north of Dover, including Wilmington)

Endress+Hauser Inc.

1500 Horizon Drive, Unit 114

Chalfont, PA 18914

Phone:888-ENDRESS

Fax: (215) 712-9030

E-mail: info@us.endress.com

LRM, Incorporated
215 North Main Street
Souderton, PA 18964

Phone: (215) 721-4840
Fax: (215) 721-4923
E-mail: LRM1@netcarrier.com

(south of Dover, including Dover)

Philip R. Walker & Associates
211 Old Padonia Road
P.O. Box 924
Cockeysville, MD 21030
Phone: (410) 666-2142 or 666-2143
Fax: (410) 667-4103
E-mail: sales@prwalker.com

Website: www.prwalker.com