Operation interface: mobile APP (Android, iOS) Smart Intelligent LCD display function Display Interface: English or Chinese Easy to Setup and install/Variety of sizes range. High Accuracy:±0.5% of reading(RD) Flow direction function: Plus or Reverse Alarm Function: Excitation and No fluid tubes Alarm. Install Way: Adjustable and Flange type. https://www.fgttw.com/en/products/flow-meter-oem-odm-solution/water-flow-meter/fmg-w-wireless-type-electromagnetic-flow-meter