The NEO-M8U is the industry’s first Untethered 3D Dead Reckoning (UDR) module. It combines multi-GNSS (GPS, GLONASS, BeiDou, Galileo) with an onboard 3D gyro/accelerometer, to provide accurate positioning even where GNSS signals are weak or not available. It achieves this without any connection to the vehicle other than power. This module provides superior multipath suppression, which improves position accuracy even in tough environments, such as urban canyons, tunnels, or parking garages. The module looks and behaves just like a regular GNSS receiver and does not require any special mounting or connection to the vehicle. It requires a 2.7 to 3.6 V supply and is available in a module that measures 12.2 x 16.0 x 2.4 mm.