The Krohne OPTIFLEX 1300 is a 2-wire (4…20 mA) guided radar level transmitter based on the Time Domain Reflectometry (TDR) technology. It measures the level of solids, liquids or liquid-liquid interfaces. The guided radar has higher signal dynamics and a sharper pulse than conventional TDR devices and therefore a better repeatability and accuracy. The OPTIFLEX 1300 offers a large variety of probes to meet any application requirement.