NON-PROGRAMMABLE LOW-VOLTAGE THERMOSTAT (661486)

Blue 2″ display, single-stage (1H1C) non-programmable digital thermostat
Backlit display
24 volt
System switch HeatOffCool
Fan switch AutoOn
Profile Horizontal
Battery powered
Replaces 1F86-344
Range 45-90°F
Terminals R, C, W, Y, G, OB
Accessories Wallplate with junction box adapter F61-2500