We, Dong-A Geovan is offering various types of special purpose instruments to monitor subtle displacement of structure and ground movement.Our goal is to provide optimized soultion just in time.Especially Geovan's products such as ABS Inclinometer Casing, Load Cell, VW Strain Gage, Wirelss Data Logger, EL Tiltmeter etc will guide you to meet successful projects.Should you have any questions, Please contact us at anytime.Thank you.