Landscape Contractor National - January 2003
ZIPLEVEL PRO-2000 Boosts Performance & Profits - Dennis L. Vories, P.E.
Landsape Architect and Specifier News - December 2002
Elevating Performance and Profits - Dennis L. Vories, P.E.
Sunset Magazine - January 1997
The Electronic Toolbox
California Professional Engineer - October 1996
Design News - March 1996
Hydrostatic Altimeter Measures Elevation Directly - Mark A. Gottchalk
Electronic Component News - November 1995
Engineering Achievement Awards
Equipment World - April 1995
One Person Leveling Made Easy - By Rick Smith
Popular Science - January 1995
Staying On the Level In The Great Outdoors - Merle Henkenius
Tools Of The Trade - Spring 1994
Shooting Grade by Computer - John D. Wagner