PossibleStates enumerates the string outputs of the Sensor. For example, a \"Switch\" Sensor may output the states \"On\", ...

PossibleStates enumerates the string outputs of the Sensor. For example, a \"Switch\" Sensor may output the states \"On\", or \"Off\". Another implementation of the Switch may output the states \"Open\", and \"Close\". Another example is a NumericSensor supporting thresholds. This Sensor can report the states like \"Normal\", \"Upper Fatal\", \"Lower Non-Critical\", etc. A NumericSensor that does not publish readings and thresholds, but stores this data internally, can still report its states.