Abstract: A multipurpose sensing module used in association with a removable filter pan includes a capacitive sensor that is disposed within or proximate to the removable filter pan such that the sensor is adapted to measure and determine status parameters and data of a fluid contained within the removable filter pan. A sealed control box is adapted to house sensor electronics that are in communication with the sensor. The sensor electronics are adapted to receive the status parameters and data from the capacitive sensor. A connector is adapted to allow the sensor electronics to communicate with a controller of the controlled system. The controller is adapted to determine a presence and status of the removable filter pan based on the communication between the sensor electronics and the controller.