MicroTesla LTD started in 2000, providing directional instrument repair and calibration services to companies using measurement-while-drilling ( MWD ) tools. We grew from a repair and calibration service to a subcontract manufacturer of directional steering instruments. From there, our expertise and business grew to include the design of a drop in replacement directional sensor and from there to the development of the industry standard magnetometer and our own directional steering instruments. In 2008 MicroTesla Magnetic Field Effects was started and we became an oilfield "service" company not just a directional steering instrument manufacturer. We are committed to providing the oil and gas industry with the very highest level of directional instrument performance. Our performance criteria are quite simple and includes reliability, accuracy and value. MicroTesla Magnetic Field Effects now provides the industry with magnetometers, analog directional sensors, digitized directional sensors and fully optimized directional steering modules. We are proud to be a certified ISO 9001 company.