The radio switch could easily teach the CCU2 and shows quite accurate readings. I use it to measure the consumption of our washing machine and to detect when this is done with the washing process. Once, for example, the power consumption drops below 3.0 watts, I let my wife and me a push message over the CCU2 on iPhone send that the washing machine can be emptied. In addition, I let me on the HomeMatic LED16 status display the current status of the machine (from: green, runs: orange, ready: red) show. Thanks to the highly accurate power measurement of the radio switch actuator these different status can be measured reliably.
