| 340 / | HD | COMMUNICATIONS: ELECTRICAL |
| 500 | DF | CONDITION RESPONSIVE INDICATING SYSTEM {6} |
| 501 | DF | .~ With particular system function (e.g., temperature compensation, calibration) {8} |
| 517 | DF | .~.~ Selection from a plurality of sensed conditions {6} |
| 523 | | .~.~.~ Particular sequence of conditions |