Signet 7002 Vortex Flow Sensors provide extremely accurate and reliable flow measurement with no moving parts. Utilizing ultrasonic pick-up technology, these sensors are unaffected by normal piping system vibrations and have excellent turndown ratio. PVDF and High-Purity PVDF versions, sizes 3-inch and 4-inch (d90/DN80, d110/DN100), are available in wafer and flange configurations and should be your first choice for flow measurement applications from chemical delivery to UPW distribution. The sensors feature frequency and 4 to 20 mA output, and can be used with Signet's comprehensive offering of flow instrumentation to achieve enhanced system functionality.