... LCD1,LCD indicator blue background and white letters; 2,Supply Voltage: DC16V~DC24V; 3,Supply Signal: Discrete signal,like Binary Code,Decimal Code ... . Properties LCD Display Rated VoltageDC16~36V Rated Current 100mA~140mA Supply SignalDiscrete signal,like Binary code,Decimalcode, BCD code,Greycode,7 ...