Technical specifications:Receiving partVoltage channel: ±32V24 bitA/DAccuracy: as Vp5mV, ±0.2% ±1 character as 0.1mVVp5mV, ±1% ±1 character Input impedance: 50 Apparent polarization accuracy: ±1±1character SP compensation range: ±10V Current channel: 6A24bitA/DMeasurement accuracy: as Ip5mA, ±0.2% ±1character as 0.1mA?¤Ip5mA, ±1% ±1character As for 50Hz industrial interfacecommon and different modedepression is better than 80dBTransmitter part:Maximium power: 7200W Maximium supply voltage: ±1200V Maximium supply current: ±6A Supply current width :160s, duty rate 1:1OtherWorking temperature: -10+50,95RH Storge temperature: -20 +60 Power supply: builtin 7.4V4Ahor outside 12V, lasting for 20h Main unit port: A, B, M, N, DC high voltage, outside battery, 2 cable port, RS-232, blue tooth Weight: 4kg Size : 270mm246mm123mm