1>remote flow meter 2>flange,clamp,thread connection 3>4-20mA,frequency output 4>HART,MODBUS protocal Detailed Product DescriptionFlow Meterwith competitive pricegood stability ... : 4~20mA output, frequency, pulseProtocal: RS485(MODBUSE ), and HARTSupply power: 86~265V AC, 18~36V DC Electromagnetic Flowmeter,thick liquid,accuracy,HART,MODBUS ...