Timer Switch, Thermometer and Hygrometer, Pid Temperature and Humidity Controller manufacturer / supplier in China, offering Dds548mr 4p RS485 Single Phase Multifunction Energy Meter 6-Parameter Display 5 (100) a 230V, Dds6619-013 2p Transparent-Case Multifunction Energy Meter Large LCD Backlit Reset Buttons, 5 (80) a 230VAC 50Hz, Class 1.0, Dds548r 4p Single Phase Energy Meter RS485 Modbus-RTU 5 (80) a 230V 1600imp/Kwh LCD Display and so on.