Electric transfer switches, electric transfer panels, namely, electrical power distribution panels with power transfer capability for switching between alternate power sources, electrical power distribution units, electrical power inlet boxes for connection to a building electrical system for supplying power from an auxiliary power source, electric power outlets, and power cords for standby generating systems, and parts therefor; devices or systems for providing an alert as to an actual or potential harmful or damaging situation or condition on a premises, namely, sensors for detecting power outage, water leakage, flooding, sump pump failure, low temperature or unwanted entry, transmitters for communicating an alert as to an actual or potential harmful or damaging situation or condition on a premises, namely, power outage, water leakage, flooding, sump pump failure, low temperature or unwanted entry, alarms for signaling an actual or potential harmful or damaging situation or condition on a premises, namely, power outage, water leakage, flooding, sump pump failure, low temperature or unwanted entry; auxiliary power supplies; receptacles and switches for connecting an auxiliary power supply to a building electrical system; sensors for detecting electrical current or voltage; sensors for detecting electrical usage parameters of appliances and other electrical loads; time switches, namely, switches with a timing feature for selectively connecting an electrical power supply to an electrical load, and timers