With the LEDSENSE Retrofit Control Package, lights and HVAC work in conjunction with factory-paired occupancy and window/door sensors to optimize energy use. The more advanced LEDSENSE Retrofit Intelligence Package enhances the Retrofit Control Package with add-ons including a website portal, a gateway, a building-automation-system connection (BACnet), and a utility connection. With LEDSENSE, energy costs and usage in a building can be reduced by up to 90 percent. Additionally, energy use, occupancy, air quality, and other environmental factors in a building can be monitored remotely from a computer, tablet, or smartphone.