Features and Benefits Wide range of nominal diameters (DN3-DN3000) Independent of pressure, temperature, density and viscosity No moving parts, maintenance-free Automatic power failure recording function (optional) Built-in grounding electrodes Bi-directional flow measurement. ±0.5% f.s. accuracy std, ±0.2% f.s. optional. Self-diagnosis function, empty pipe alarm, exciting alarm Support data record / Bluetooth / wireless communication