Specialist Compass and Navigation Instruments from SIRS NAVIGATION LTD Quality Approved to ISO 9001, CAA-BCAR & JAR-145 Special Notice On 17th June 2002 - We are moving!! Please click here for details SIRS Navigation Ltd have been designing, manufacturing and repairing Magnetic Compasses, Azimuth Circles, Sextants and other Navigation Instruments for over 30 years. The Company supplies its ...