How the Surge protector status check works

Method

1. Each indicator reading maps to transparent rules; the rules that fire and their weights are shown as a trace, so the status is inspectable rather than asserted.
2. A protection indicator reports current manufacturer status. It is not treated as a meter for remaining joule capacity, and the tool does not infer hidden component condition from a lit lamp.
3. Known surge events and service history are kept separate from the light reading because protection capacity is finite. Replacement timing follows the manufacturer's guidance for the model; the tool does not assume a fixed interval.