The flow calculator Safir VRS has a large dynamic range, as it allows to connect up to three differential pressure transmitters to one orifice device. The calculator has a user-friendly display on which the obtained values ​​of the three connected pressure transmitters are displayed, and also has a large capacity of memory.

The climatic version of the calculator Safir is UHL 4.2 according to GOST15150-69. The calculator Safir works in a wide  temperature range of 0–40 ° С, the degree of protection against exposure to water and dust is IP54. Calculator Safir is not intended for installation in an explosive room, in case of sensors being installed outside of an explosive area, it is necessary to use protection barriers.