iSense is an environmental monitoring and control system consisting of networked, microprocessor-based sensor nodes and a central system. The sensor nodes gather data from various sensors like temperature, humidity, smoke, and send the information wirelessly to the central system. The central system stores the historical sensor data and can also send commands to individual nodes to control devices like AC units. iSense can be used for building automation, security, and remote monitoring applications in homes, offices, and museums.