1. LCD/LDE display 2. Rs485 digital interface. 3. 96*96MM size. Function1. Programable, digital communication, ... supplyWorking rangeAC,DC 80V~270VPower consumption≤5VAOutputDigital valueRS-485 Interface ,MODBUS-RTU protocolPulse output2 electric energy pulse output, ... relative humidity ≤93%,no corrosive gas, height above sea level≤2500mIsolation withstand voltageInput and power supply>2kV, input and ...