"PNI Tilt Compensated 3-Axis Compass Module TCM 2.5"@en . . "SDN:L22::TOOL1022" . "A 3-axis compass module designed to measure compass heading, tilt and magnetometer measurements on various marine and terrestrial platforms. These include ROV, AUV, remote terrestrial antennas, side-scan sonar and various other robotic systems and survey equipment. The RCM2.5 integrates 3-axis magnetic field sensing, 2-axis tilt sensing and compass heading into a single module. The TCM 2.5 replaces PNIs original TCM 2 family of products, and has since been replaced by the TCM 2.6. Heading measurement accuracy is 0.8 degrees while pitch, roll and tilt accuracy is 0.2 degrees. The instrument has a resolution of 0.1 degrees."@en . .