VisionPRO� 8000 with RedLINK� is a 7 day programmable touchscreen thermostat that is selectable for residential or light commercial use. The thermostat can be wired directly to the equipment, used with the THM5421R1021 Equipment Interface Module or used with the THM4000R1000 TrueZONE Wireless Adapter. Works with the RedLINK� accessories including the RedLINK� Internet Gateway, Portable Comfort Control, Wireless Outdoor Sensor, Wireless Indoor Sensor, Wireless Entry/Exit Remote and Wireless Vent and Filter Boost Remote.