For example, a Numeric Point ZoneTemp with hs:zoneAirTempSensor and a:a marker tags is configured with units facets of temperature °F and precision 1. If its DataSourceBlock Unit Conversion property is configured with temperature °C, the block converts a source value of 62.8 °F to an out value of 17.1 °C. The configured units must be convertible, otherwise the algorithm does not process.