Omega Engineering”s LVRD500 radar transmitters are designed for noncontact liquid level measurement and are being touted as a logical extension of the company”s line of ultrasonic sensors. They are a good fit for applications where vapor, dust, or a foaming surface prevents ultrasonic measurement. The LVRD500”s radar sensor uses microwave pulse technology to track target liquids from the antenna tip to the bottom of a tank. This advanced “echo marker” signal processing provides a reliable, continuous-pulse shape unaffected by environmental conditions. RS-232 and RS-485 models are available.