Telephone: (612) 522-4040 or (800) 515-4040

Fax: (612) 522-2829 or (800) 515-2829

Postal Address: 1320 12th Avenue North, Minneapolis, Minnesota 55411-4063

Email:

General: eui@engunl.com

Sterling Locks: jringram@engunl.com

Engineering and Control Systems: rcwerner@engunl.com