SiMEMS board mounted accelerometers offering tactical and/or navigation grade performance designed for inertial applications. All sensors feature a compact designed housing, hermetically sealed, built-in self test and low mass. The GA50 is a high-performance open loop analogue output sensor exhibiting a VRW (residual noise) from < 1.3 μg/√Hz. All are ITAR free, development boards are available on request for performance verification.