Suitable for conductive medium with conductivity areater than 5μS/cm, nominal diameter range is wid e.adapt to various actual environmental conditions, with a variety of power supply mode, a variety of signaloutput, using standard RS-485 serial communication interface, support the international standard MODBUS-RTU communication protocol and GPRS and other wireless and wired.Communication networking mode.with cumulative pulse equivalent output. Provide wireless meter reading system (computer managementsoftware and database)with remote network access.