Reach RS is a rugged and versatile multi-GNSS RTK receiver with built-in IMU. It can provide coordinates down to centimeters in RTK mode. RTK mode requires a pair of receivers: one is stationary which provides corrections, another one moving which applies corrections and provides its precise coordinates. Reach has open-source RTK engine RTKLIB at its core and is controlled using cross-platform ReachView app. Thanks to large battery and built-in radio communication Reach RS is perfectly suited for field work.