TAU2102 is a GNSS module with dead reckoning, which is based on the Allystar CYNOSURE III SoC chips. It supports GPS, BDS, and QZSS satellite signals.

Combining GNSS positioning and inertial navigation technology makes TAU2102 output positioning data in the environments where GNSS signal quality is poor or even lost (such as tunnels, underground parking, etc.), and provide continuous and accurate positioning for navigation applications.