1. LCD/LDE display 2. Rs485 digital interface. 3. 96*96MM size. Function1. Programable, digital communication, ... factor. frequency and four-phase electricity energy. Technical ParameterAccuracyU,I 0.2 class, P,Q 0.5 class, Active ... Power supplyWorking rangeAC,DC 80V~270VPower consumption≤5VAOutputDigital valueRS-485 Interface ,MODBUS-RTU protocolPulse output2 electric energy pulse output, light ...