A monitoring system for use in monitoring a machine includes at least one sensor for use in measuring at least one operating condition of the machine and at least one monitoring module coupled to the at least one sensor. The at least one monitoring module includes at least one display formed integrally with the monitoring module and configured to display real-time data representative of a currently measured operating condition of the machine and to display historical data representative of a previously measured operating condition of the machine such that a user is enabled to visually compare the historical data with the real-time data.