Rosemount non-contacting radar is based on Frequency Modulated Continuous Wave (FMCW) technology, which transmits a continuous radar signal with the frequency increasing over time to create a signal sweep. The signal is then reflected back to the antenna, to calculate the level.

This technology enables greater measurement accuracy and reliability, which can be applied to a broader range of applications. In a measurement situation, temperature variations, dust or pressure changes do not affect accuracy.