... ,power factor,frequency,reactive power,KVArH etc. DW8 series intellligent digital power meter YOTO brandMain introductions:1.supply voltage: 90~260V ... code: IN2 input signal: AV,AA,DA,DV for option IN1 input signal: AV,AA,DA,DV for option Communication interface: Default ... you are interested in our product,pls don't hesitate to contact us.