The Krohne BM 26 F2200 is a combination of the BM 26 A magnetic level indicator with the OPTIFLEX 2200 guided radar (TDR) level transmitter. The OPTIFLEX 2200 measures level reliably and the BM 26 A provides level indication. This way, the device permits a local redundant measurement where the measuring results of the TDR guided radar can be checked against those of the magnetic level indicator.