We delivered a cost-effective, reliable Smart IoT solution to integrate controls and monitoring in building for a prominent corporate customer. We replaced their traditional fan coil thermostats with wireless IoT controlled fan coil thermostats. This solution streamlined energy management with wireless, easy-to-install smart fan coil thermostats, eliminating the need for extra wiring in air-conditioning systems. Our solution connects to the cloud for real-time controlling and monitoring while also easily integrating with other smart energy systems. We are proud to provide a highly scalable solution for this smart building energy retrofitting project.