E+H Micropilot FMR540 is used for custody transfer and inventory control applications with NMi- and PTB-approvals and meets the requirements according to OIML R85 and API 3.1B. FMR540 with parabolic antenna is particularly suited for free space applications up to 40m and with horn antenna for free space applications that disallow the use of a parabolic antenna due to tank/nozzle geometry. Cost-effective and simple installation via 4-wire cable with HART and 24 V DC intrinsically safe power supply.