US Patent 9500194 Sump pump monitoring device and method

Embodiments for monitoring and powering one or more sump pumps of a sump pump system are disclosed. In one embodiment, a monitoring device includes a battery, a power inverter, a power outlet, and a power cord to receive AC power from an AC power outlet. A sump pump system includes a sump and an AC pump coupled to the power outlet of the monitoring device. The monitoring device is configured to select between AC power received from the AC power outlet and AC power supplied by the battery and the power inverter, and provide the selected AC power to the AC pump via the power outlet of the monitoring device.