Detailed settings for numeric sensors:

  • Status: enable or disable the sensor. 'Disabled' sensors do not appear in reports or alerts and disabling a sensor removes all its logged data.
    • NOTE: Most sensors only have 'Enabled' or 'Disabled' options but the more power-consuming phone sensors (Accelerometer, Location and Sound) have an additional 'Enabled (charging)' option, which means only use this sensor if the phone is charging. This prolongs the time the phone can run on battery during a power cut.
  • Mode: some numeric sensors can operate in different modes. For example, cumulative or instantaneous readings.
  • Label: the sensor label that appears in email reports/alerts and on the sensor settings screen. You can change this to something more meaningful to your application.
  • Short label: a shorter sensor label for text (SMS) reports/alerts.
  • Alert below: the threshold below which the sensor will report a (low) alert. Also used for colour-coding sensor values on report graphs and elsewhere. Set to 'Disabled' to disable low-alerts for this sensor.
  • Alert above: The threshold above which the sensor will report a (high) alert. Also used for colour-coding sensor values on report graphs and elsewhere. Set to 'Disabled' to disable high-alerts for this sensor.
  • Display from: set the minimum numeric value to be displayed on report graphs. Supports auto-scaling, where the graph's minimum value is automatically set to the minimum value logged for that sensor.
  • Display to: set the maximum numeric value to be displayed on report graphs. Supports auto-scaling, where the graph's maximum value is automatically set to the maximum value logged for that sensor.
  • Calibration: some numeric sensors can be calibrated. For example, if a numeric sensor is reading 10.2 when it should be reading 10.4 you can enter a '10.2(raw) => 10.4 (actual)' calibration and future readings will be scaled accordingly.
  • Transducer ID: unique sensor identifier (external sensors only).
  • Transducer port: the port to which the sensor is attached (external sensors only).
  • Save: save changes to the sensor settings (changes will NOT be saved unless you click this).
  • Cancel: discard changes and return to previous screen.
  • Defaults: restore sensor to default settings (no need to press Save).

Note that changes made to sensors may cause changes to dependent settings, e.g. disabling an alert threshold will delete corresponding alerts.