A method for reconfiguring an equipment monitoring system may include (a) providing a monitoring device including sensor(s) configured to monitor a particular device; and a processor configured to analyze the sensor data collected by the sensor(s) to determine a status of the particular device, and control one or more status indicators to display the determined status; (b) connecting a removable memory module to the monitoring device, which memory module receives and stores sensor data from the monitoring device sensor(s); (c) connecting a removable wireless transmitter module to the monitoring device or the removable memory module, (d) connecting the removable wireless transmitter module to additional source(s) of sensor data; (e) receiving at the removable wireless transmitter module sensor data from the monitoring device sensor(s), and additional sensor data from the additional sensor data source(s); and (f) wirelessly transmitting both the sensor data and the additional sensor data to a wireless receiver.