RBEFB-W Electromagnetic water flow meters are based on electromagnetic flow (EMF) technology and provide measurement of a wide flow range.Special for Irrigation Magmeters.RBEF-W Battery Magnetic Water Meter Specification supporting meter size: DN3 DN800Accuracy: 0.2%, 0.5%, 1%Measurement range: 0.05 15m sMeasuring medium (conductivity):> 20s cmMedium temperature: -10 160 Ambient temperature: -20 50 Humidity: 95% (relative humidity)Protection grade: IP65, IP67, IP68Power Supply: 3.6V built-in lithium battery, continuous working time 3--6 yearsDisplay: large-screen LCD device for displaying instantaneous flow velocity, forward reverse cumulative total and alarmsOutput signals: pulse output 0.0001-10m3p, frequency output 1-5000Hz (passive optocoupler output)Recording data: total accumulated flowSystem alarms: Fluid empty pipe detection alarm, excitation current detection alarm, battery capacity detection alarm;Scaled output signal: pulse per unit volume flowCommunication: RS485, GSM GPRS CDMA wireless data transmitting