The battery-powered electromagnetic flow meter is a self-contained measuring instrument operating on Faraday’s law of electromagnetic induction, designed for conductive liquids such as water, sewage, slurries, and corrosive fluids with conductivity above 5 μS/cm. It requires no external power supply, relying on high-capacity lithium batteries for up to 5–10 years of maintenance-free service.

 

Featuring low-power digital excitation and high-precision signal processing, it delivers stable measurement with accuracy up to ±0.5%. Equipped with an LCD display, it shows instantaneous flow, totalized volume, and alarm status. Compact and easy to install, it is widely used in remote water supply, irrigation, field monitoring, and urban pipe networks where grid power is unavailable. Its non-pressure-drop structure and corrosion-resistant linings ensure long service life in harsh outdoor environments.