Profile: LandSea Technical Services Pte. Ltd. is a supplier of enhanced logging imaging system (II) surface system, open hole logging tool, open hole hi-tech logging tool, cased hole logging tool, and perforating gun. We offer a wide range of acoustic/sonic, radioactivity/nuclear, and resistivity logging tools used for open hole. Three arm caliper logging tool logs the borehole diameter using its three arms to drive the POT inside the tool, and transfers the change of borehole diameter into electrical signal. In the ELIS logging system, the electrical signal will be calculated into the digital borehole diameter.