The High Accuracy GNSS Receiver i90 IMU-RTK GNSS receiver offers integrated IMU-RTK technology to provide a robust and accurate positioning, in any circumstances. Unlike the standard MEMS-based GNSS receivers, the i90 GNSS IMU-RTK combines state-of-the-art GNSS RTK engine, a calibration-free high-end IMU sensor and advanced GNSS tracking capabilities to dramatically increase RTK availability and reliability. The i90 automatic pole-tilt compensation boosts survey and stakeout speed by up to 30%. Construction and land surveying projects are achieved with high productivity and reliability pushing the boundaries of conventional GNSS RTK survey.