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Earth Rate Measurement and Orientation Sensor

ERMOS is a revolutionary new GYRO COMPASS orientation sensor module for Instro’s range of Target Acquisition Systems. Operated in conjunction with Instro’s Thor goniometer, the gyro compass module is a self-contained detachable unit providing a highly accurate Azimuth Reference as part of Target Acquisition System deployment.

Optimised for use by dismounted forces where physical size and weight of equipment is a critical consideration, the ERMOS gyro compass module is compact and can be held comfortably in the palm of a hand. Solid state technology and a rugged all metal housing ensure long service life and reliability in the field.

The ERMOS gyro compass sensor module features a Smart Interface for all electrical connections requiring only the execution of a simple procedure by the operator during deployment to provide an accurate azimuth heading relative to True North.


Main Advantages & Features 

  • Seamless integration with Instro and
    other Target Acquisition Systems and
    options for use in third party solutions
    to establish accurate north reference
  • Accurate azimuth reference after three
    minutes. Approx reference within 20
  • Simple software guided operation
  • Rugged and reliable
  • Smart interface, no additional cables or
    batteries required
  • Compact size, low weight

  • Dismounted Precision Targeting
  • Forward Observer / JTAC indirect fire control
  • Artillery fire control
  • Mortar fire control
  • Gun laying
  • Special forces






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