The T Series programmable thermostat streamlines everything from product selection and installation to customer service and support. With a standard footprint and simple interface, the T Series will enhance the entire thermostat experience for you and your customers alike.6 Pro Wi-Fi Programmable Thermostat with stages up to 3 Heat/2 Cool Heat Pump or 2 Heat/2 Cool Conventional with Ventilation. Wi-Fi touchscreen - Wi-Fi Connected version uses Honeywell Home Platform application for smart devices. Dual Fuel & ventilation control. Flexible scheduling or geofence technology. Geofencing, 7-day, 5-2, 5-1-1 or non-programmable. 6.89 sq. in Touchscreen Display. Power Method: C-Wire Only. Stages: 3H/2C Heat Pump + 2H/2C Conventional. Terminal Designations: RC, R, C, W, W2 - AUX, Y, Y2, O/B, G, K, E, U, U, L/A, S, S.