Verkoop en onderhoud van Ratio computers
http://www.ratio-computers.com/idive/sport/index.htm
http://www.ratio-computers.com/idive/sport/idive_sport_easy.htm
http://www.ratio-computers.com/catalog/Ratio_Computer_iDive_Color.pdf
http://www.ratio-computers.com/ix3m/pro/index.htm
http://www.ratio-computers.com/ix3m/gps/index.htm
http://www.ratio-computers.com/transmitter/index.htm
http://www.ratio-computers.com/compare/iDive_features_comparative_205.pdf
http://www.ratio-computers.com/compare/iX3M_features_comparative_205.pdf