Bartington Instruments offers a range of high temperature fluxgate probes.These include sensing elements for operation up 215⁰ C. These are typically used in MWD (measurement while drilling) directional drilling. These units are available with drive electronics design information for ease of integration into your directional sensor.
Mag610/Mag611 These are high temperature three-axis fluxgate probes, designed for operation up to 175⁰ C and 215⁰ C.
Mag614 This high temperature miniature three-axis fluxgate probe is designed for operation up to 175⁰C. Its compact size makes it ideal for integration into space critical downhole tools. A circuit design is available to help you integrate the probe into your own design.