The sensors dialog box (100) can be used to serve two purposes, according to a preferred embodiment of the present invention. First, it can allow the user to specify and change most of the settings of the sensors used in the system. When the user selects a sensor from the list of available sensors (1002), the rest of the sensors dialog (100) fills with information that describes and relates to the selected sensor. The name, type calibration, and check period of the sensor can be entered into the edit boxes (1004), in the preferred embodiment, manual entry can occur as long as the sensor is not linked to the calendar from the sensor log generator dialog box. This embodiment can also include an apply button (1006) and change sensor color for graphics button (1008). When the sensor is of type "EQUATION", the information in an equation window (1010) will be parsed to tell the program how to interpret what the reading of the sensor is at any given time.