 Crossbow NAV series ::: 
GPS enabled interial systems
Crossbow’s NAV420 and NAV440 product familes utilize MEMS-based inertial sensors and GPS technology to provide an unmatched value in price and performance.
The NAV420 and NAV440 system architectures are designed to combine the functions of an IMU, VG, AHRS and GPS in a compact environmentally sealed enclosure with built-in EMI protection. |  Crossbow IMU :::
A family Inertial Measurement Units (IMU) providing 6 Degrees of Freedom (6DOF) motion sensing for applications such as instrumentation, control and basic navigation systems. |
 Crossbow Vertical Gyro :::
Traditional Vertical Gyros use a mechanically gimbaled gyro system that is erected to a gravity reference to provide measurement of roll and pitch angles relative to earth’s horizontal axes.
The Crossbow VG400CD, VG440CA and VGS440CA are Vertical Gyros which are solid-state inertial measurment system that utilize the latest MEMS micro-machined sensing technology. They combine angular rate and linear acceleration measurements to create an electronically stabilized "VG", without the typical orientation, warm-up and reliability limitations of traditional systems. The VGS440 also includes a built-in GPS receiver and provides GPS position, velocity and heading measurements.
The VG700CB series is a 3rd-generation high stability Fiber Optic Vertical Gyro with less than 20°/Hr drift. The VG700AB series is an inertial system specifically designed for Automotive Test Applications.
The VG700MB series is specifically designed for military applications such as UAV flight control, helicopter avionics and shipboard antenna stabilization. |  Crossbow AHRS :::
MEMS based Attitude & Heading Reference Systems combine the functions of Vertical Gyro and a Direction Gyro to provide measurement of roll, pitch and heading (azimuth) angles |
