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Downhole Directional Tools

Inertial Sensing develops, manufactures and supplies gyroscopic and magnetic borehole surveying systems with outstanding quality and reliability. Utilizing rugged modular hardware and intuitive software, the systems give fast results with a high degree of accuracy.

Inertial Sensing's advanced magnetic and gyroscopic borehole surveying tools are the direct result of more than 30 years' solid experience of developing commercial positioning and tracking systems based on inertial micro-sensor systems (MEMS).
MEMS memory rate gyro system  The isGyro is a user-friendly borehole survey tool that offers you high accuracy in all environments. Download and processing times are fast and the tool can survey for up to 16 hours on a single battery charge. 
World's smallest MEMS memory rate gyro system    The isSlimGyro is the world's smallest rate gyro survey instrument. With a diameter of only 21.56 mm it offers high accuracy in even the tightest holes.
Based on modern MEMS technology The isCompass is a magnetic multishot instrument for borehole surveying based on modern MEMS technology. It is fully integrated in its own brass running gear, requiring little set-up in the field. 
isAnalysis software displays drill hole data in 3D