WS-DLRs measures electrical energy consumption and transmits data to the base station. Sensing is done on any device plugged into the power outlet of the sensor.
WS-DLRc measures electrical energy consumption and transmits data to the base station. Sensing is done on any device connected to the power outlet of the sensor.
WS-DLXp is used for measuring electrical energy consumption in high voltage, high current, 3 phase electrical systems. The WS-DLXp is used in combination with a kWh-meter which can generate pulses.