The X8-M2 Series from Bynav is a GNSS/INS positioning box delivering 1 cm RTK accuracy with support for L1, L2, and L5 bands, dead reckoning, dual antennas, and anti-jamming capability. Available in X8-M20, X8-M21, X8-M20D, X8-M21D, and X8-M22 variants with single or dual antenna configurations, it features 4G LTE, Bluetooth, and USB connectivity, IP65 protection, L-Band and CLAS support, and up to 100 Hz INS output. It is configurable through the By Center Android app and web platform for centimeter-level trace mapping.