When you delete a sensor, Touchstone disables any rules that reference the sensor.
To delete a sensor, click SETTINGS on the toolbar to display the settings page.
Click the type of sensor that you would like to delete to display the sensor’s settings page.
Click the 
icon next to the sensor that you would like to edit and you will see the option to rename the sensor. Rename it and click save.
OR
Click the 
icon next to the sensor that you would like to delete and you will see a confirmation dialog displayed.
Click YES to remove the sensor from your Touchstone system.