
For a whole house test, use the X-10 transmitter of your choice to continuously send an X-10 transmission. (i.e. ELK Magic Module, ELK-MM443). Then move the ESM1 to various AC receptacles located around the house to verify the signal. The ESM1 listens to your power line, and displays signal strength of any activity at the X-10 frequency. It also measures and displays any signal between 100mV and 5 volts (The maximum specified X-10 signal strength).