±3...10 mm accuracy Two-wire technology for integration with all tank sensors via the 4590 Tank Side Monitor Intrinsically safe wiring for all on-tank sensors reduces wiring costs and improves reliability Non-contact measurement: No moving parts, no product contact and extremely low maintenance Independent measurement not influenced by sticky or viscous products Easy on-tank operation via menu-driven alphanumeric display Easy commissioning and diagnostics Two frequency ranges - 6 (230,231) and 26 (240) GHz:No compromises - the right frequency for every application