Braeburn® 7320 Bluelink Thermostat, Wi-Fi Thermostat, 45 to 90 deg F Control, 0.5 to 2 deg F Stage-1, 1 to 6 deg F Stage-2, 1 to 6 deg F Stage-3 Differential, 5-2 Days Programs per Week, RH, RC, C, W2/AUX, W1/E, L, A, O/B, G, Y2, Y1, K, S2, S1 Terminal