Sensi 1F86U-42WF Wi-Fi thermostat features remote access from smartphone, tablet, PC via Wi-Fi home network. The Sensi offers features such as 7 day scheduling, room humidity display, 24 volts, system switch-heat, off, cool, auto, emergency fan switch-auto, on, profile-horizontal, hardwire and/or batteries, auto changeover, early start recovery, selectable °F/°C, range 45-99°F. terminals - RC, RH, C, W/E, W2, Y, Y2, O/B, G, L